Updated on 2024/11/22

Information

 

写真a

 
WAKASA TOMOTSUGU
 
Organization
Faculty of Science Department of Physics Professor
Faculty of Science Superheavy element research center(Concurrent)
Center for Accelerator and Beam Applied Science (Concurrent)
School of Sciences Department of Physics(Concurrent)
Graduate School of Sciences Department of Physics(Concurrent)
Title
Professor
Contact information
メールアドレス
Profile
Experimental Nuclear Physics 1. Nuclear medium effects on NN interactions 2. Gamow-Teller resonances in unstable nuclei 3. Spin Isopin responses in nuclei 4. Pionic enhancement of spin response functions in quasielastic region 5. Gamow-Teller strength in the continuum and its quenching factor 6. Study of pionic mode in nuclei 7. Search for alpha cluster condensation in 16O 8. Medium modifications of nucleon-nucleon interactions in nuclear field
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Research Areas

  • Natural Science / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Degree

  • Doctor of Science

Research History

  • 大阪大学核物理研究センター 1998年11月から2003年3月

Research Interests・Research Keywords

  • Research theme:Spin-Isospin Mode

    Keyword:Spin-Isospin Mode

    Research period: 2024

  • Research theme:スピン・アイソスピンモード

    Keyword:スピン・アイソスピンモード

    Research period: 2024

  • Research theme:Equation of state and elemental synthesis approached by independent measurement of proton and neutron radii of nuclei using FFA accelerator

    Keyword:Equation of state, Nucleosynthesis, proton and neutron radii

    Research period: 2023.4 - 2026.3

  • Research theme:Neutron production by A(d,n) and A(3He,n) reactions

    Keyword:Break-up reactions, neutron production

    Research period: 2016.3 - 2019.3

  • Research theme:Study of Nuclear Medium Effects on NN Intereaction and Partial Restoration of Chiral Symmetry

    Keyword:Medium effect, Chiral condensation

    Research period: 2010.3

  • Research theme:Study of Isospin T=3/2 Resonance in Three Nucleon System

    Keyword:Isospin T=3/2, Resonance, Three Nucleon System

    Research period: 2007.4

  • Research theme:スピン双極子共鳴状態の分離・同定とテンソル力

    Keyword:スピン双極子共鳴、テンソル力

    Research period: 2005.4

  • Research theme:High Rate Production of Polarized He with Meta-Stability Exchange Method

    Keyword:polarized 3He, Meta-Stability Exchange Method

    Research period: 2004.4 - 2008.2

  • Research theme:High resolution study of 0- state in 16O

    Keyword:High resolution study, 0- state, 16O

    Research period: 2002.4 - 2006.1

  • Research theme:Search for alpha cluster condensation in nuclei

    Keyword:alpha cluster condensation

    Research period: 2001.10 - 2007.9

  • Research theme:Pionic enhancement in quasielastic (p,n) reactions at 345 MeV

    Keyword:Pionic enhancement, spin response functions, quasielastic region

    Research period: 1999.4 - 2004.5

  • Research theme:連続状態におけるガモフ・テラー遷移強度とその抑制因子

    Keyword:ガモフ・テラー遷移、強度分布、抑制因子

    Research period: 1997.4

Awards

  • 特別研究員等審査会専門委員(書面担当)の表彰

    2017.9   日本学術振興会  

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    検証結果に基づき、書面審査における有意義な審査意見を付していただいた専門委員を表彰することとし、書面審査を行った約1,500名の専門委員のうち、表彰対象となる任期2年目にあたる約600名の中から158名を選考しました。

Papers

  • Extraction of the Landau-Migdal Parameter from the Gamow-Teller Giant Resonance in Sn 132 Reviewed

    J. Yasuda, M. Sasano, R. G.T. Zegers, H. Baba, D. Bazin, W. Chao, M. Dozono, N. Fukuda, N. Inabe, T. Isobe, G. Jhang, D. Kameda, M. Kaneko, K. Kisamori, M. Kobayashi, N. Kobayashi, T. Kobayashi, S. Koyama, Y. Kondo, A. J. Krasznahorkay, T. Kubo, Y. Kubota, M. Kurata-Nishimura, C. S. Lee, J. W. Lee, Y. Matsuda, E. Milman, S. Michimasa, T. Motobayashi, D. Muecher, T. Murakami, T. Nakamura, N. Nakatsuka, S. Ota, H. Otsu, V. Panin, W. Powell, S. Reichert, Satoshi Sakaguchi, H. Sakai, M. Sako, H. Sato, Y. Shimizu, M. Shikata, S. Shimoura, L. Stuhl, T. Sumikama, H. Suzuki, S. Tangwancharoen, M. Takaki, H. Takeda, T. Tako, Y. Togano, H. Tokieda, J. Tsubota, T. Uesaka, Tomotsugu Wakasa, K. Yako, K. Yoneda, J. Zenihiro

    Physical Review Letters   121 ( 13 )   2018.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevLett.121.132501

  • Proton-induced knockout reactions with polarized and unpolarized beams Reviewed International journal

    #T. Wakasa, K. Ogata, #T. Noro

    Progress of Particle and Nuclear Physics   96   32 - 87   2017.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    Proton-induced knockout reactions provide a direct means of studying the single particle or cluster structures of target nuclei. In addition, these knockout reactions are expected to play a unique role in investigations of the effects of the nuclear medium on nucleon– nucleon interactions as well as the properties of nucleons and mesons. However, due to the nature of hadron probes, these reactions can suffer significant disturbances from the nuclear surroundings and the quantitative theoretical treatment of such processes can also be challenging. In this article, we review the experimental and theoretical progress in this field, particularly focusing on the use of these reactions as a spectroscopic tool and as a way to examine the medium modification of nucleon–nucleon interactions. With regard to the former aspect, the review presents a semi-quantitative evaluation of these reactions based on existing experimental data. In terms of the latter point, we introduce a significant body of evidence that suggests, although does not conclusively prove, the existence of medium effects. In addition, this paper also provides information and comments on other related subjects.

  • Observation of Low- and High-Energy Gamow-Teller Phonon Excitations in Nuclei Reviewed International journal

    WAKASA TOMOTSUGU

    Phys.Rev.Lett. 112, 112502 (2014)   112   2014.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    Observation of Low- and High-Energy Gamow-Teller Phonon Excitations in Nuclei

  • Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb Reviewed International journal

    WAKASA TOMOTSUGU

    Prog. Theor. Exp. Phys. 063D02 (2013).   063D02   2013.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb

  • Complete sets of polarization transfer observables for the 208Pb(p, n) reaction at 296 MeV and Gamow-Teller and spin-dipole strengths for 208Pb Reviewed International journal

    WAKASA TOMOTSUGU

    Physical Review C   85   2012.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    Complete sets of polarization transfer observables for the 208Pb(p, n) reaction at 296 MeV and Gamow-Teller and spin-dipole strengths for 208Pb

  • Polarization transfer measurements for 12C(p,n)12N(g.s.,1+) at 296 MeV and nuclear correlation effects Reviewed International journal

    80   2009.8

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  • Complete set of polarization transfer coefficients for the 3He(p, n) reaction at 346 MeV and 0 degrees Reviewed International journal

    T.Wakasa, E.Ihara, M.Dozono, K.Hatanaka, T.Imamura, M.Kato, S.Kuroita, H.Matsubara, T.Noro, H.Okamura, K.Sagara, Y.Sakemi, K.Sekiguchi, K.Suda, T.Sueta, Y.Tameshige, A.Tamii, H.Tanabe, Y.Yamada

    Physical Review C   2009.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    Complete set of polarization transfer coefficients for the 3He(p, n) reaction at 346 MeV and 0 degrees

  • Cross sections and analyzing powers for (p, n) reactions on 3He and 4He at 346 MeV Reviewed International journal

    E.Ihara, T.Wakasa, M.Dozono, K.Hatanaka, T.Imamura, M.Kato, S.Kuroita, H.Matsubara, T.Noro, H.Okamura, K.Sagara, Y.Sakemi, K.Sekiguchi, K.Suda, T.Sueta, Y.Tameshige, A.Tamii, H.Tanabe, Y.Yamada

    Physical Review C   2008.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    Cross sections and analyzing powers for (p, n) reactions on 3He and 4He at 346 MeV

  • Study of nuclear correlation effects via 12C(p,n)12N(g.s.,1+) at 296 MeV Reviewed International journal

    T. Wakasa, M. Dozono, E. Ihara, S. Asaji, K. Fujita, K. Hatanaka, M. Ichimura, T. Ishida, T. Kaneda, H. Matsubara, Y. Nagasue, T. Noro, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tameshige, A. Tamii and Y. Yamada

    PHYSICS LETTERS B   2007.11

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    Language:English  

  • New candidate for an alpha cluster condensed state in 16O(alpha,alpha') at 400 MeV Reviewed International journal

    PHYSICS LETTERS B   2007.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    New candidate for an alpha cluster condensed state in 16O(alpha,alpha') at 400 MeV

  • Isovector effective NN interaction in 28Si(p,n)28P(6-) at 198 MeV Reviewed International journal

    T. Wakasa, Y. Hagihara, T. Noro, T. Ishida, S. Asaji, Y. Nagasue, K. Hatanaka, Y. Sakemi, A. Tamii, Y. Shimizu, K. Fujita, Y. Tameshige, H. Sakai, H. Kuboki, M. Sasano, M. Ichimura, H. Kamada and M. Yamaguchi

    PHYSICS LETTERS B   2007.2

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  • Calibration of the effective analyzing power for a He-3 polarimeter at 443 MeV Reviewed International journal

    Kamiya J, Hatanaka K, Adachi T, Fujita K, Hara K, Kawabata T, Noro T, Sakaguchi H, Sakamoto N, Sakemi Y, Shimbara Y, Shimizu Y, Terashima S, Uchida M, Wakasa T, Yasuda Y, Yoshida HP, Yosoi M

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   507 ( 3 )   703 - 711   2003.7

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    Calibration of the effective analyzing power for a He-3 polarimeter at 443 MeV

    DOI: 10.1016/S0168-9002(03)01436-0

  • Polarization transfer in the O-16(p,p ') reaction at forward angles and structure of the spin-dipole resonances Reviewed International journal

    Kawabata T, Ishikawa T, Itoh M, Nakamura M, Sakaguchi H, Takeda H, Taki T, Uchida M, Yasuda Y, Yosoi M, Akimune H, Yamasaki K, Berg GPA, Fujimura H, Hara K, Hatanaka K, Kamiya J, Noro T, Obayashi E, Wakasa T, Yoshida HP, Brown BA, Fujita H, Fujita Y, Shim

    PHYSICAL REVIEW C   2002.6

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    Polarization transfer in the O-16(p,p ') reaction at forward angles and structure of the spin-dipole resonances

  • Search for narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions Reviewed International journal

    Tamii A, Hatanaka K, Hatano M, Hirooka D, Kamiya J, Kato H, Maeda Y, Saito T, Sakai H, Sakoda S, Sekiguchi K, Uchigashima N, Uesaka T, Wakasa T, Yako K

    PHYSICAL REVIEW C   2002.4

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    Search for narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions

  • (d)over-right-arrow-p and (n)over-right-arrow-d scatterings at intermediate energy and three-nucleon force effects Invited Reviewed International journal

    Sakai H, Maeda Y, Sekiguchi K, Glockle W, Greenfield MB, Hatanaka K, Hatano M, Hirooka D, Kamada H, Kamiya J, Kato H, Ohnishi T, Okamura H, Rapaport J, Saito T, Sakamoto N, Sakoda S, Satou Y, Suda K, Tamii A, Uchigashima N, Uesaka T, Wakasa T, Witala H, Y

    NUCLEAR PHYSICS A   2001.6

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    Language:English   Publishing type:Research paper (international conference proceedings)  

    (d)over-right-arrow-p and (n)over-right-arrow-d scatterings at intermediate energy and three-nucleon force effects

  • Gamow-Teller strength in the continuum and quenching problem Invited Reviewed International journal

    Sakai H, Wakasa T, Okamura H, Nonaka T, Ohnishi T, Yako K, Sekiguchi K, Fujita S, Satou Y, Otsu H, Uesaka T, Ishida S, Sakamoto N, Greenfield MB, Hatanaka K

    NUCLEAR PHYSICS A   1999.5

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    Gamow-Teller strength in the continuum and quenching problem

  • Strength observed in Gamow-Teller resonance plus continuum in the Al-27((p)over-right-arrow,(n)over-right-arrow) reaction at 295 MeV Reviewed International journal

    Wakasa T, Sakai H, Okamura H, Otsu H, Fujita S, Ishida S, Sakamoto N, Uesaka T, Satou Y, Greenfield MB, Hatanaka K

    PHYSICS LETTERS B   1998.5

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    Strength observed in Gamow-Teller resonance plus continuum in the Al-27((p)over-right-arrow,(n)over-right-arrow) reaction at 295 MeV

  • Polarized He-3 project at RIKEN Invited Reviewed International journal

    Uesaka T, Wakui T, Ohnishi T, Okamura H, Satou Y, Ishida S, Sakamoto N, Otsu H, Wakasa T, Nonaka T, Yokoyama G, Itoh K, Sekiguchi K, Haruyama S, Ikeda T, Wakasugi M, Sakai H, Yano Y

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   1998.1

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    Polarized He-3 project at RIKEN

  • Facility for the (p,n) polarization transfer measurement Reviewed International journal

    Sakai H, Okamura H, Otsu H, Wakasa T, Ishida S, Sakamoto N, Uesaka T, Satou Y, Fujita S, Hatanaka K

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   1996.1

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    Facility for the (p,n) polarization transfer measurement

  • Precise Spectroscopy of the 3 n and 3 p Systems via the 3 H ( t, 3 He ) 3 n and 3 He ( 3 He , t ) 3 p Reactions at Intermediate Energies

    Miki, K; Kameya, K; Sakai, D; Urayama, R; Imai, N; Ishikawa, S; Michimasa, S; Ota, S; Sasano, M; Takeda, H; Uesaka, T; Haba, H; Hara, M; Hatano, Y; Hayamizu, T; Kobayashi, N; Tamii, A; Adachi, S; Chillery, T; Dozono, M; Fujikawa, Y; Fujita, H; Fukuda, N; Furuno, T; Gao, J; Goto, S; Hanai, S; Hayakawa, S; Hijikata, Y; Himi, K; Hirai, Y; Hwang, JW; Ichimura, M; Inomoto, D; Inoue, M; Kasahara, H; Kawabata, T; Kishimoto, K; Kitayama, S; Kusaka, K; Li, J; Maeda, Y; Maruta, Y; Matsui, T; Matsuzaki, T; Nakai, S; Nishibata, H; Otake, M; Saito, Y; Sakai, H; Sakaue, A; Sato, H; Sekiguchi, K; Shimizu, Y; Shimoura, S; Stuhl, L; Sumikama, T; Suzuki, H; Tsuji, R; Tsuji, S; Umetsu, H; Utsuki, Y; Wakasa, T; Watanabe, A; Yako, K; Yanagisawa, Y; Yokota, N; Yonemura, C; Yoshida, K; Yoshimoto, M

    PHYSICAL REVIEW LETTERS   133 ( 1 )   012501   2024.7   ISSN:0031-9007 eISSN:1079-7114

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    Language:English   Publisher:Physical Review Letters  

    To search for low-energy resonant structures in isospin T=3/2 three-body systems, we have performed the experiments H3(t,He3)3n and He3(He3,t)3p at intermediate energies. For the 3n experiment, we have newly developed a thick Ti-H3 target that has the largest tritium thickness among targets of this type ever made. The 3n experiment for the first time covered the momentum-transfer region as low as 15 MeV/c, which provides ideal conditions for producing fragile systems. However, in the excitation-energy spectra we obtained, we did not observe any distinct peak structures. This is in sharp contrast to tetraneutron spectra. The distributions of the 3n and 3p spectra are found to be similar, except for the displacement in energy due to Coulomb repulsion. Comparisons with theoretical calculations suggest that three-body correlations exist in the 3n and 3p systems, although not enough to produce a resonant peak.

    DOI: 10.1103/PhysRevLett.133.012501

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  • The anti-tumor effect of trifluridine via induction of aberrant mitosis is unaffected by mutations modulating p53 activity

    Wakasa, T; Nonaka, K; Harada, A; Ohkawa, Y; Kikutake, C; Suyama, M; Kobunai, T; Tsunekuni, K; Matsuoka, K; Kataoka, Y; Ochiiwa, H; Miyadera, K; Sagara, T; Oki, E; Ohdo, S; Maehara, Y; Iimori, M; Kitao, H

    CELL DEATH DISCOVERY   10 ( 1 )   307   2024.7   ISSN:2058-7716 eISSN:2058-7716

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  • Measurement of Spin Correlation Coefficient <i>C<sub>y,y</sub></i> for Proton-<SUP>3</SUP>He Elastic Scattering

    Watanabe, A; Nakai, S; Sekiguchi, K; Goto, S; Hatanaka, K; Hirai, Y; Ino, T; Inomoto, D; Inoue, M; Ishikawa, S; Itoh, M; Kanda, H; Kasahara, H; Maeda, Y; Miki, K; Nonaka, K; Ong, HJ; Oshiro, H; Sakai, D; Sakai, H; Shibuya, S; Tran, DT; Umetsu, H; Utsuki, Y; Wakasa, T

    FEW-BODY SYSTEMS   65 ( 2 )   2024.3   ISSN:0177-7963 eISSN:1432-5411

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    Publisher:Few-Body Systems  

    We present the measured spin correlation coefficient Cy,y for p-3He elastic scattering at 100 MeV at the angles θc.m.=46.9∘–149.2∘ in the center of mass system. The experiment was performed using a 100 MeV polarized proton beam in conjunction with the polarized 3He target. Proton beams were injected to the target, and scattered protons were detected by using E-ΔE detectors which consisted of plastic and NaI(Tl) scintillators. The data are compared with rigorous numerical calculations based on realistic NN potentials as well as with the Δ-isobar excitation. The obtained results indicate that the Cy,y expands the knowledge of the nuclear interactions with Δ-isobar or those including 3NFs that are masked in nucleon-deuteron elastic scattering.

    DOI: 10.1007/s00601-024-01891-8

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  • Study of Gamow-Teller giant resonance in 11Li drip-line nucleus

    Stuhl, L; Sasano, M; Gao, J; Hirai, Y; Yako, K; Wakasa, T; Ahn, DS; Baba, H; Chilug, AI; Franchoo, S; Fujino, Y; Fukuda, N; Gibelin, J; Hahn, IS; Halász, Z; Harada, T; Harakeh, MN; Inomoto, D; Isobe, T; Kasahara, H; Kim, D; Kiss, GG; Kobayashi, T; Kondo, Y; Korkulu, Z; Koyama, S; Kubota, Y; Kurihara, A; Liu, HN; Matsumoto, M; Michimasa, S; Miki, H; Miwa, M; Motobayashi, T; Nakamura, T; Nishimura, M; Otsu, H; Panin, V; Park, S; Saito, AT; Sakai, H; Sato, H; Shimada, T; Shimizu, Y; Shimoura, S; Spiridon, A; Stefanescu, IC; Sun, X; Sun, YL; Suzuki, H; Takada, E; Togano, Y; Tomai, T; Trache, L; Tudor, D; Uesaka, T; Yang, Z; Yamada, H; Yasuda, M; Yoneda, K; Yoshida, K; Zenihiro, J; Zhang, N

    NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS   47 ( 2 )   2024.3   ISSN:2037-4909 eISSN:1826-9885

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    Publisher:Nuovo Cimento della Societa Italiana di Fisica C  

    Gamow-Teller (GT) transitions in an exotic neutron-rich nucleus 11Li have been measured via the 11Li(p,n)11Be reaction at 182 MeV/u in inverse kinematics at RI Beam Factory (RIBF) of RIKEN Nishina Center. The neutron detector array PANDORA and the SAMURAI spectrometer were used to detect recoil neutrons and decay products produced in the (p,n) reaction, respectively. Preliminary results of kinematic correlation of recoil neutrons, corresponding to GT transitions, are presented for several decay channels of 11Be reaction product. Fourteen decay channels with light-particle emission from 11Be excited states, including seven new channels, are identified, in addition to the non-particle-emission channel from 11Be ground or low-lying states.

    DOI: 10.1393/ncc/i2024-24039-6

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  • Heavy Ion Injection of Fixed-Field Alternating Gradient Accelerator

    Yonemura, Y; Arima, H; Nishibata, H; Teranishi, T; Wakasa, T; Ikeda, N; Watanabe, K; Shigyo, N; Iwamura, T; Adachi, K; Takamatsu, K; Kotani, M; Tanaka, H; Matsunaga, R; Matsumoto, T; Takenaka, K; Kajihara, T; Matsunaga, S; Shinohara, Y; Mori, Y

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2024 ( 2 )   2024.2   ISSN:2050-3911

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    Publisher:Progress of Theoretical and Experimental Physics  

    Much r esear ch in r ecent years has focused on cir cular accelera tors tha t accelera te and store secondary particles with a large momentum spread, such as muons, unstable nuclei, and heavy ions with different charge states. A fixed-field alternating gradient (FFAG) accel- erator with large transverse and momentum acceptance has ob vious advanta ges for such r equir ements. A versatile beam injection method is r equir ed to accelerate secondary parti- cles with a large momentum spread and different charge states with an FFAG accelerator. In the present study, a method for charge exchange injection of positi v e heavy ions using the large momentum acceptance of an FFAG accelerator is proposed. A charge injection system, which converts a He 1 + beam to a He 2 + beam, is de v eloped for a 150 MeV FFAG accelera tor a t the Center for Accelerator and Beam Applied Science (CABAS) of Kyushu Uni v ersity. As the first step to verify the injection method, an orbit shift from one charge state to the other is demonstrated. This is the first demonstration of heavy ion injection using an FFAG accelerator.

    DOI: 10.1093/ptep/ptae017

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  • Heavy Ion Injection of Fixed-Field Alternating Gradient Accelerator

    Yonemura Yujiro, Arima Hidehiko, Nishibata Hiroki, Teranishi Takashi, Wakasa Tomotsugu, Ikeda Nobuo, Watanabe Kenichi, Shigyo Nobuhiro, Iwamura Tatsunori, Adachi Kyosuke, Takamatsu Koki, Kotani Motoki, Tanaka Hisato, Matsunaga Rintaro, Matsumoto Taichi, Takenaka Kyohei, Kajihara Takafumi, Matsunaga Sotaro, Shinohara Yusuke, Mori Yoshiharu

    Progress of Theoretical and Experimental Physics   2024 ( 2 )   2024.1   eISSN:20503911

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    Much research in recent years has focused on circular accelerators that accelerate and store secondary particles with a large momentum spread, such as muons, unstable nuclei, and heavy ions with different charge states. A fixed-field alternating gradient (FFAG) accelerator with large transverse and momentum acceptance has obvious advantages for such requirements. A versatile beam injection method is required to accelerate secondary particles with a large momentum spread and different charge states with an FFAG accelerator. In the present study, a method for charge exchange injection of positive heavy ions using the large momentum acceptance of an FFAG accelerator is proposed. A charge injection system, which converts a He^<1+> beam to a He^<2+> beam, is developed for a 150 MeV FFAG accelerator at the Center for Accelerator and Beam Applied Science (CABAS) of Kyushu University. As the first step to verify the injection method, an orbit shift from one charge state to the other is demonstrated. This is the first demonstration of heavy ion injection using an FFAG accelerator.

    CiNii Research

  • Experimental study of (p, 2p) reactions at 197 MeV on <sup>12</sup>C, <sup>16</sup>O, <sup>40,48</sup>Ca, and <sup>90</sup>Zr nuclei leading to low-lying states of residual nuclei

    Tetsuo Noro, Satoshi Sakaguchi, Tomotsugu Wakasa, Masanori Dozono, Hiroyuki Fujioka, Kunihiro Fujita, Kichiji Hatanaka, Takashi Ishida, Chihiro Iwamoto, Shoichiro Kawase, Yuki Kubota, Yukie Maeda, Hiroaki Matsubara, Kenjiro Miki, Shinsuke Ota, Valerii Panin, Harutaka Sakaguchi, Akane Sakaue, Yasuhiro Sakemi, Masaki Sasano, Kimiko Sekiguchi, Yohei Shimizu, Hiroyuki Takeda, Yuji Tameshige, Atsushi Tamii, Satoru Terashima, Tomohiro Uesaka, Zai Hong Yang, Yusuke Yasuda, Hidetomo P. Yoshida, Juzo Zenihiro

    Progress of Theoretical and Experimental Physics   2023 ( 9 )   2023.9   ISSN:2050-3911 eISSN:2050-3911

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    We have measured the differential cross section and analyzing power for (p, 2p) reactions that lead to discrete states of residual nuclei at an incident energy of 197 MeV for five kinds of target nuclei, 12C, 16O, 40,48Ca, and 90Zr. The data are compared with distorted-wave impulse approximation calculations using two kinds of global optical potentials. The spectroscopic factors obtained from these calculations agree with those determined in (e, e′p) studies within 20%, except for one orbital of the 90Zr nucleus where the distortion effect is much greater than that for the other orbitals of 90Zr and for other target nuclei. We also observed a clear and visibly distinct j-dependence in the analyzing power.

    DOI: 10.1093/ptep/ptad116

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  • 12C+12C as the reference for reaction cross section

    Tagami, S; Wakasa, T; Yahiro, M

    RESULTS IN PHYSICS   51   2023.8   ISSN:2211-3797

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    Background: In our previous paper, we tested the chiral (Kyushu) folding model for 12C+12C scattering, since the profile function in the Glauber mode is constructed for the system. We found that the folding model is reliable for reaction cross sections σR in 30≲Elab≲100MeV and 250≲Elab≲400MeV. Accurate data are available for 12C scattering on 9Be, 12C, 27Al targets in 30≲Elab≲400MeV. Purpose: We determine matter radius rm(exp) of 12C from the accurate σR(exp), using the Kyushu g-matrix folding model. Results: Our result is rm12(exp)=2.352±0.013 fm for 12C. The model is applied for the accurate data on 12C+27 Al scattering, and yields rm(exp)=2.936±0.012 fm for 27Al. Conclusion: Our conclusion is that rm(exp)=2.352±0.013 fm agrees with rm(exp)=2.35±0.02 fm determined from interaction cross sections by Tanihata et al.

    DOI: 10.1016/j.rinp.2023.106675

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  • Skin values and matter radii of 208Pb and 58,60,64Ni based on reaction cross section of 3,4He scattering

    Tagami, S; Wakasa, T; Yahiro, M

    RESULTS IN PHYSICS   51   2023.8   ISSN:2211-3797

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    Background: The PREX group reported a new skin value, rskin208(PREX2)=0.283±0.071=0.212∼0.354fm. Using the chiral (Kyushu) g-matrix folding model with the proton and neutron densities determined with D1S+GHFB+AMP, we determined neutron skin thickness rskin208(exp)=0.278±0.035 fm from reaction cross sections σR(exp) of p+208Pb scattering, where D1S-GHFB+AMP denotes Gogny-D1S HFB with angular momentum projection (AMP). The method also yielded rskin208(exp)=0.416±0.146 from σR(exp) of 4He+208Pb scattering. In our previous work, we accumulated the 206 EoSs and determined a sloop parameter L=76∼165MeV from the 206 EoSs. The value of L yields rskin208=0.102∼0.354fm. As for 58Ni, a novel method for measuring nuclear reactions in inverse kinematics with stored ion beams was successfully used to extract matter radii rm of 58Ni at the GSI facility. Purpose: As the first aim, we first determine rskin208(exp) from σR(exp) of 3He scattering on 208Pb target and take the weighted mean and its error for rskin208(PREX2), three skin values of p+208Pb, 3,4He+208Pb scattering and rskin208=0.102∼0.354fm based on the 206 EoSs. As the second aim, we determine matter radii rm(exp) of 58,60,64Ni from σR(exp) of 3,4He scattering on 58,60,64Ni targets. Results: Our result is rskin208(exp)=0.512±0.268fm for 3He+208Pb scattering. Our results based on 4He+58,60,64Ni scattering are rm58(exp)=3.734±0.091 fm, rm60(exp)=3.815±0.094 fm, rm64(exp)=4.001±0.093 fm. Our results based on 3He+58,60,64Ni scattering are rm58(exp)=3.709±0.098 fm, rm60(exp)=3.753±0.112 fm, rm64(exp)=3.822±0.142 fm. Conclusion: Our conclusion is rskin208=0.285±0.030fm. It is determined from the 5 skin values mentioned above.

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  • Determination of matter radius and neutron-skin thickness of 60,62,64Ni from reaction cross section of proton scattering on 60,62,64Ni targets

    Tagami, S; Wakasa, T; Yahiro, M

    RESULTS IN PHYSICS   51   2023.8   ISSN:2211-3797

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    Background: In our previous work, we determined matter radii rm(exp) and neutron-skin thickness rskin(exp) from reaction cross sections σR(exp) of proton scattering on 208Pb, 58Ni, 40,48Ca, 12C targets, using the chiral (Kyushu) g-matrix folding model with the densities calculated with Gogny-D1S-HFB (D1S-GHFB) with angular momentum projection (AMP). The resultant rskin(exp) agree with the PREX2 and CREX values. As for 58Ni, our value is consistent with one determined from the differential cross section for 58Ni+4He scattering. As for p+60,62,64N scattering, σR(exp) are available as a function of incident energies Ein, where Ein=22.8∼65.5MeV for 60Ni, Ein=40,60.8MeV for 62Ni, Ein=40,60.8MeV for 64Ni. Purpose: Our aim is to determine matter radii rm(exp) for 60,62,64Ni from the σR(exp). Method: Our method is the Kyushu g-matrix folding model with the densities scaled from D1S-GHFB + AMP densities, Results: Our skin values are rskin(exp)=0.076±0.019,0.106±0.192,0.162±0.176 fm, and rm(exp)=3.759±0.011,3.811±0.107,3.864±0.101 fm for 60,62,64Ni, respectively.

    DOI: 10.1016/j.rinp.2023.106748

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  • Determination of matter radius and neutron-skin thickness of 60,62,64Ni from reaction cross 2023年 section of proton scattering on 60,62,64Ni targets Reviewed International journal

    Tagami Shingo、Wakasa Tomotsugu、Yahiro Masanobu

    51   106748-1 - 106738-3   2023.6

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    Background: In our previous work, we determined matter radii 𝑟m(exp) and neutron-skin thickness 𝑟skin(exp) from reaction cross sections 𝜎R (exp) of proton scattering on 208 Pb, 58 Ni, 40,48 Ca, 12 C targets, using the chiral (Kyushu) 𝑔-matrix folding model with the densities calculated with Gogny-D1S-HFB (D1S-GHFB) with angular momentum projection (AMP). The resultant 𝑟skin(exp) agree with the PREX2 and CREX values. As for 58Ni, our value is consistent with one determined from the differential cross section for 58Ni+4He scattering. As for p+60,62,64N scattering, 𝜎R(exp) are available as a function of incident energies 𝐸in, where 𝐸in = 22.8∼65.5 MeV for 60Ni, 𝐸in = 40, 60.8 MeV for 62Ni, 𝐸in = 40, 60.8 MeV for 64Ni.
    Purpose Our aim is to determine matter radii 𝑟m(exp) for 60,62,64Ni from the 𝜎R(exp).
    Method: Our method is the Kyushu 𝑔-matrix folding model with the densities scaled from D1S-GHFB + AMP densities,
    Results: Our skin values are 𝑟skin(exp) = 0.076 ± 0.019, 0.106 ± 0.192, 0.162 ± 0.176 fm, and 𝑟m(exp) = 3.759 ± 0.011, 3.811 ± 0.107, 3.864 ± 0.101 fm for 60,62,64 Ni, respectively.

    DOI: https://doi.org/10.1016/j.rinp.2023.106748

  • Skin values and matter radii of 208Pb and 58,60,64Ni based on reaction cross section of 3,4He scattering Reviewed International journal

    Results in Physics   51   106649-1 - 106649-4   2023.6

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    DOI: https://doi.org/10.1016/j.rinp.2023.106649

  • 12C+12C scattering as the reference system for reaction cross section Reviewed International journal

    Results in Physics   51   106675-1 - 106675-3   2023.6

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    DOI: https://doi.org/10.1016/j.rinp.2023.106675

  • Lineage of drug discovery research on fluorinated pyrimidines: chronicle of the achievements accomplished by Professor Setsuro Fujii

    Maehara, Y; Oki, E; Ota, M; Harimoto, N; Ando, K; Nakanishi, R; Kawazoe, T; Fujimoto, Y; Nonaka, K; Kitao, H; Iimori, M; Makino, K; Takechi, T; Sagara, T; Miyadera, K; Matsuoka, K; Tsukihara, H; Kataoka, Y; Wakasa, T; Ochiiwa, H; Kamahori, Y; Tokunaga, E; Saeki, H; Yoshizumi, T; Kakeji, Y; Shirabe, K; Baba, H; Shimada, M

    INTERNATIONAL JOURNAL OF CLINICAL ONCOLOGY   28 ( 5 )   613 - 624   2023.5   ISSN:1341-9625 eISSN:1437-7772

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  • Report on the 19th Annual Meeting of Particle Accelerator Society of Japan

    Ikeda Nobuo, Wakasa Tomotsugu, Suwada Tsuyoshi, Harada Hiroyuki

    Journal of the Particle Accelerator Society of Japan   20 ( 1 )   57 - 62   2023.4   ISSN:13493833 eISSN:24361488

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    DOI: 10.50868/pasj.20.1_57

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  • Neutron skin thickness of 116,118,120,122,124Sn determined from reaction cross sections of proton scattering

    Shingo Tagami, Tomotsugu Wakasa, Masanobu Yahiro

    Results in Physics   46   106296   2023.3   ISSN:2211-3797

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    DOI: 10.1016/j.rinp.2023.106296

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  • Neutron-skin values and matter and neutron radii determined from reaction cross sections of proton scattering on C 12, Ca 40,48, Ni 58, and Pb 208

    Tomotsugu Wakasa, Shingo Tagami, Jun Matsui, Maya Takechi, and Masanobu Yahiro

    Physical Review C   107 ( 2 )   024608   2023.2   ISSN:2469-9985 eISSN:2469-9993

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    DOI: 10.1103/PhysRevC.107.024608

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  • Skin values of 208Pb and 48Ca determined from reaction cross sections

    Wakasa Tomotsugu, Tagami Shingo, Yahiro Masanobu

    Results in Physics   43   106101   2022.12   ISSN:2211-3797

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    DOI: 10.1016/j.rinp.2022.106101

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  • Slope parameters determined from CREX and PREX2

    Shingo Tagami, Tomotsugu Wakasa, Masanobu Yahiro

    Results in Physics   43   106037   2022.12   ISSN:2211-3797

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    DOI: 10.1016/j.rinp.2022.106037

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  • Spin correlation coefficient for proton-3He elastic scattering at 100 MeV

    A. Watanabe, T. Wakasa et al.

    Physical Review C   106   054002   2022.11

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    DOI: https://doi.org/10.1103/PhysRevC.106.054002

  • Spin correlation coefficient for proton- <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>He</mml:mi><mml:mprescripts /><mml:none /><mml:mn>3</mml:mn></mml:mmultiscripts></mml:math> elastic scattering at 100 MeV

    A. Watanabe, S. Nakai, K. Sekiguchi, A. Deltuva, S. Goto, K. Hatanaka, Y. Hirai, T. Ino, D. Inomoto, M. Inoue, S. Ishikawa, M. Itoh, H. Kanda, H. Kasahara, Y. Maeda, K. Miki, K. Nonaka, H. J. Ong, H. Oshiro, D. Sakai, H. Sakai, S. Shibuya, D. T. Tran, H. Umetsu, Y. Utsuki, T. Wakasa

    Physical Review C   106 ( 5 )   2022.11   ISSN:2469-9985 eISSN:2469-9993

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    DOI: 10.1103/physrevc.106.054002

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    Other Link: http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevC.106.054002/fulltext

  • Matter radii and skins of <sup>6,8</sup>He from reaction cross section of proton+<sup>6,8</sup>He scattering based on the Love–Franey t-matrix model

    Tomotsugu Wakasa, Maya Takechi, Shingo Tagami, Masanobu Yahiro

    Results in Physics   35   2022.4   ISSN:2211-3797 eISSN:2211-3797

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    Background: For 4,6,8He, Tanihata et al. determined matter radii rm(σI)=1.57(4),2.48(3),2.52(3) fm from interaction cross sections σI for 4,6,8He scattering on Be, C Al targets at 790 MeV/nucleon. Lu et al. measured the atomic isotope shifts (AIS) for 4,6,8He and determined proton radii rp(AIS) for 4,6,8He. As for p+4,6,8He scattering, reaction cross sections σR(exp) are available at 700 MeV with high accuracy. Aim: Our aim is to determine matter radii rm and skins rskin for 6,8He from the σR(exp) and the rp(AIS). Method: Our model is the Love–Franey t-matrix folding model, since the model is better than the optical limit of Glauber model. Results: Our results for 6,8He are rm(exp)=2.48(3),2.53(2) fm and rskin=0.78(3), 0.82(2) fm. Conclusion: For 6,8He, our results rm(σR) agree with those of Tanihata et al. For 8He, the distance between 4He and the center of mass of valence four neutrons is 2.367 fm.

    DOI: 10.1016/j.rinp.2022.105329

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  • Folding-model approach to reaction cross section of 4,6,8He+12C scattering at 790 MeV

    Shingo Tagami, Tomotsugu Wakasa, Maya Takechi, Jun Matsui, Masanobu Yahiro

    Results in Physics   33   2022.2   ISSN:2211-3797 eISSN:2211-3797

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    Tanihata et al. (1988) determined matter radii rm(σI) for 4,6,8He from interaction cross sections σI of 4,6,8He+12C scattering at 790 MeV per nucleon, using the optical limit of the Glauber model. Lu et al. (2013) determined proton radii rp(AIS) for 4,6,8He with the atomic isotope shifts (AIS). We investigate whether the Love-Franey t-matrix folding model is good for 4,6,8He+12C scattering at 790 MeV per nucleon.

    DOI: 10.1016/j.rinp.2021.105132

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  • Neutron skin in 48Ca determined from p+48Ca and 48Ca+12C scattering

    Shingo Tagami, Tomotsugu Wakasa, Maya Takechi, Jun Matsui, Masanobu Yahiro

    Results in Physics   33   2022.2   ISSN:2211-3797 eISSN:2211-3797

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    Background: In our previous paper, we determined rskin208(exp)=0.278±0.035 fm from measured reaction cross sections σR for p+208Pb scattering, using the Kyushu (chiral) g-matrix folding model with the densities calculated with the Gogny-D1S Hartree–Fock–Bogoliubov (D1S-GHFB) with the angular momentum projection (AMP). The value agrees with that of PREX2. Reaction cross sections σR are available for p+48Ca scattering, whereas interaction cross sections σI(≈σR) are available for 48Ca + 12C scattering. As for 48Ca, the high-resolution E1 polarizability experiment (E1pE) yields rskin48(E1pE)=0.14∼0.20fm. Purpose: We determine rskin48(exp) from the data on σR for p+48Ca scattering and from the data on σI for 48Ca+12C scattering. Methods: We use the Kyushu g-matrix folding model with the densities calculated with the D1M-GHFB+AMP densities. The D1M-GHFB+AMP proton and neutron densities are scaled so as to reproduce the data under the condition that the radius rp of the scaled proton density equals the data rp(exp) determined from the electron scattering. We deduce skin values rskin=rn(exp)−rp(exp) from the resulting rn(exp) and the rp(exp) determined from electron scattering. The same procedure is taken for D1S-GHFB+AMP. Results: We regard rskin48(E1pE) as a reference skin value. Using the reference skin value and taking D1M-GHFB+AMP, we determine rskin48(exp)=0.158±0.025 fm for p+48Ca scattering and 0.160±0.058 fm for 48Ca + 12C scattering. Conclusion: We take the weighted mean and its error for the two skin values. The result is rskin48(exp)=0.158±(0.023)exp±(0.012)thfm.

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  • Analyzing Power Measurement for p- 3 He Elastic Scattering at Intermediate Energies

    A. Watanabe, S. Nakai, Y. Wada, K. Sekiguchi, T. Akieda, D. Etoh, M. Inoue, Y. Inoue, K. Kawahara, H. Kon, K. Miki, T. Mukai, D. Sakai, S. Shibuya, Y. Shiokawa, T. Taguchi, H. Umetsu, Y. Utsuki, M. Watanabe, S. Goto, K. Hatanaka, Y. Hirai, Y. Ikeda, T. Ino, D. Inomoto, S. Ishikawa, M. Itoh, H. Kanda, H. Kasahara, Y. Maeda, S. Mitsumoto, K. Nonaka, H. J. Ong, H. Oshiro, Y. Otake, H. Sakai, A. Taketani, D. T. Tran, T. Uesaka, T. Wakasa, Y. Wakabayashi, T. Wakui

    Few-Body Systems   62 ( 4 )   2021.12

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    DOI: 10.1007/s00601-021-01694-1

  • Reanalyzes for 42–51Ca scattering on a 12C target at 280 MeV/nucleon based on chiral g folding mode with Gogny-D1S Hartree–Fock–Bogoliubov densities

    31   2021.12

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    Background: In the previous paper, we predicted reaction cross sections σR for 40−60,62,64Ca+12C scattering at 280 MeV/nucleon, using the chiral g-matrix folding model with the densities calculated with the Gogny-D1S Hartree–Fock–Bogoliubov (GHFB) with and without the angular momentum projection (AMP), since Tanaka et al. measured interaction cross sections σI(≈σR) for 42−51Ca in RIKEN and determined neutron skin rskin(RIKEN) using the optical limit of the Glauber model with the Woods–Saxon densities. Purpose: Our purpose is to reanalyze the rskin from the σI using the chiral g-matrix folding model. Our analysis is superior to theirs, since the chiral g-matrix folding model (the GHFB and GHFB+AMP densities) is much better than the optical limit of the Glauber model (the Woods–Saxon densities). Methods: Our model is the chiral g-matrix folding model with the densities scaled from the GHFB and GHFB+AMP densities. Results: We scale the GHFB and GHFB+AMP densities so that the σR of the scaled densities can agree with the central values of σI under the condition that the proton radius of the scaled proton density equals the data determined from the isotope shift based on the electron scattering. The rskin thus determined are close to their results rskin42−51(RIKEN), except for 48Ca. For 48Ca, our value rskin48 is 0.105 ± 0.06 fm, while their value is rm48(RIKEN)=0.146±0.06 fm. We then take the weighted mean and its error of our result rskin48(σI)=0.105±0.06 fm and the result rskin48(E1pE)=0.17±0.03 fm of the high-resolution E1 polarizability experiment (E1pE). Our final result is rskin48=0.157±0.027 fm. Conclusion: Our conclusion is rskin48=0.157±0.027 fm for 48Ca. For 42−47,49−51Ca, our results on rskin are similar to theirs. Our result for 48Ca is related to CREX.

    DOI: 10.1016/j.rinp.2021.104923

  • Reaction cross section of proton scattering consistent with PREX-II

    Tomotsugu Wakasa, Shingo Tagami, Jun Matsui, Masanobu Yahiro, Maya Takechi

    Results in Physics   29   2021.10

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    DOI: 10.1016/j.rinp.2021.104749

  • Neutron skin thickness of Pb 208 determined from the reaction cross section for proton scattering

    Shingo Tagami, Tomotsugu Wakasa, Jun Matsui, Masanobu Yahiro, Maya Takechi

    Physical Review C   104 ( 2 )   2021.8

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    DOI: 10.1103/PhysRevC.104.024606

  • Proton-3He elastic scattering at intermediate energies Reviewed

    A.Watanabe, S.Nakai, Y.Wada, K.Sekiguchi, A.Deltuva, T.Akieda, D.Etoh, M.Inoue, Y.Inoue, K.Kawahara, H.Kon, K.Miki, T.Mukai, D.Sakai, S.Shibuya, Y.Shiokawa, T.Taguchi, H.Umetsu, Y.Utsuki, M.Watanabe, S.Goto, K.Hatanaka, Y.Hirai, T.Ino, D.Inomoto, A.Inoue, S.Ishikawa, M.Itoh, H.Kanda, H.Kasahara, N.Kobayashi, Y.Maeda, S.Mitsumoto, S.Nakamura, K.Nonaka, H.J.Ong, H.Oshiro, Y.Otake, H.Sakai, A.Taketani, A.Tamii, D.T.Tran, T.Wakasa, Y.Wakabayashi, T.Wakui

    Physical Review C   103   044001 - 044001   2021.4

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    DOI: 10.1016/j.nimb.2019.05.057

  • Proton- He3 elastic scattering at intermediate energies

    A. Watanabe, S. Nakai, Y. Wada, K. Sekiguchi, A. Deltuva, T. Akieda, D. Etoh, M. Inoue, Y. Inoue, K. Kawahara, H. Kon, K. Miki, T. Mukai, D. Sakai, S. Shibuya, Y. Shiokawa, T. Taguchi, H. Umetsu, Y. Utsuki, M. Watanabe, S. Goto, K. Hatanaka, Y. Hirai, T. Ino, D. Inomoto, A. Inoue, S. Ishikawa, M. Itoh, H. Kanda, H. Kasahara, N. Kobayashi, Y. Maeda, S. Mitsumoto, S. Nakamura, K. Nonaka, H. J. Ong, H. Oshiro, Y. Otake, H. Sakai, A. Taketani, A. Tamii, D. T. Tran, T. Wakasa, Y. Wakabayashi, T. Wakui

    Physical Review C   103 ( 4 )   2021.4

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    DOI: 10.1103/physrevc.103.044001

  • Study of spin-isospin response of 11Li neutron-drip-line nucleus with PANDORA Reviewed

    Journal of Physics: Conference Series   1643   012107 - 012107   2020.12

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  • Study of spin-isospin response of 11Li neutron-drip-line nucleus with PANDORA

    Journal of Physics: Conference Series   1643 ( 1 )   2020.12

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    DOI: 10.1088/1742-6596/1643/1/012107

  • Experimental study of (p, 2p) reactions at 392 MeV on C-12, O-16, Ca-40 and Pb-208 nuclei leading to low-lying states of residual nuclei

    Tetsuo Noro, Tomotsugu Wakasa, Takashi Ishida, Hidetomo P. Yoshida, Masahiro Dozono, Hisako Fujimura, Kunihiro Fujita, Kichiji Hatanaka, Takatsugu Ishikawa, Masatoshi Itoh, Junichiro Kamiya, Takahiro Kawabata, Yoshikazu Maeda, Hiroaki Matsubara, Masanobu Nakamura, Harutaka Sakaguchi, Yasuhiro Sakemi, Yohei Shimizu, Hiroyuki Takeda, Yuji Tameshige, Atsushi Tamii, Keisuke Tamura, Satoru Terashima, Makoto Uchida, Yusuke Yasuda, Masaru Yosoi

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2020 ( 9 )   2020.9

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    DOI: 10.1093/ptep/ptaa109

  • スピン偏極Mgのベータ崩壊を用いた中性子過剰なAl同位体の構造研究

    西畑 洸希, 浜野 友哉, 小田原 厚子, 下田 正, 前島 大樹, 大上 能弘, 大谷 優里花, 金谷 晋之介, 飯村 俊, 関口 直太, 浅川 寛太, 畠山 温, 平山 賀一, 若狭 智嗣

    日本物理学会講演概要集   75.1   297 - 297   2020.9

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    DOI: 10.11316/jpsgaiyo.75.1.0_297

  • How Different is the Core of F 25 from O g. s. 24 ? Reviewed

    T. L. Tang, T. Wakasa et al.

    Physical Review Letters   124 ( 21 )   2020.5

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    DOI: 10.1103/PhysRevLett.124.212502

  • How Different is the Core of F 25 from O g. s. 24 ?

    T. L. Tang, T. Uesaka, S. Kawase, D. Beaumel, M. Dozono, T. Fujii, N. Fukuda, T. Fukunaga, A. Galindo-Uribarri, S. H. Hwang, N. Inabe, D. Kameda, T. Kawahara, W. Kim, K. Kisamori, M. Kobayashi, T. Kubo, Y. Kubota, K. Kusaka, C. S. Lee, Y. Maeda, H. Matsubara, S. Michimasa, H. Miya, T. Noro, A. Obertelli, K. Ogata, S. Ota, E. Padilla-Rodal, S. Sakaguchi, H. Sakai, M. Sasano, S. Shimoura, S. S. Stepanyan, H. Suzuki, M. Takaki, H. Takeda, H. Tokieda, T. Wakasa, T. Wakui, K. Yako, Y. Yanagisawa, J. Yasuda, R. Yokoyama, K. Yoshida, K. Yoshida, J. Zenihiro

    Physical Review Letters   124 ( 21 )   2020.5

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    DOI: 10.1103/PhysRevLett.124.212502

  • Study of spin-isospin responses of radioactive nuclei with the background-reduced neutron spectrometer, PANDORA Reviewed

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   463   189 - 194   2020.1

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    DOI: 10.1016/j.nimb.2019.05.057

  • Measurement for p–(formula presented)He Elastic Scattering with a 65 MeV Polarized Proton Beam

    238   513 - 516   2020.1

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    We performed the measurement of the cross section and the proton analyzing power (formula presented) for p–(formula presented)He elastic scattering with a 65 MeV polarized proton beam at Research Center for Nuclear Physics (RCNP), Osaka University. The proton analyzing power (formula presented) data are compared with the theoretical calculations based on the nucleon–nucleon potential (INOY04).

    DOI: 10.1007/978-3-030-32357-8_85

  • Compelete Set of Deuteron Analyzing Powers for dp Elastic Scattering at 70–300 MeV/nucleon and Three-Nucleon Forces

    238   507 - 511   2020.1

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    In order to study three-nucleon force (3NF) effects in three-nucleon scattering we performed the measurements of the cross sections and the spin observables for the deuteron–proton (dp) scattering with the polarized deuteron beams at the incident energies up to 135 MeV/nucleon. Recently we have extended the measurements at the RIKEN RI Beam Factory (RIBF) with the polarized deuteron beams at 190, 250, and 300 MeV/nucleon.

    DOI: 10.1007/978-3-030-32357-8_84

  • Study of spin-isospin responses of radioactive nuclei with the background-reduced neutron spectrometer, PANDORA

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   463   189 - 194   2020.1

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    DOI: 10.1016/j.nimb.2019.05.057

  • Study of spin-isospin responses of radioactive nuclei with the background-reduced neutron spectrometer, PANDORA Reviewed

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   463   189 - 194   2020.1

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    DOI: 10.1016/j.nimb.2019.05.057

  • Measurement for p–(formula presented)He Elastic Scattering with a 65 MeV Polarized Proton Beam

    513 - 516   2020.1

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    We performed the measurement of the cross section and the proton analyzing power (formula presented) for p–(formula presented)He elastic scattering with a 65 MeV polarized proton beam at Research Center for Nuclear Physics (RCNP), Osaka University. The proton analyzing power (formula presented) data are compared with the theoretical calculations based on the nucleon–nucleon potential (INOY04).

    DOI: 10.1007/978-3-030-32357-8_85

  • Compelete Set of Deuteron Analyzing Powers for dp Elastic Scattering at 70–300 MeV/nucleon and Three-Nucleon Forces

    507 - 511   2020.1

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    Language:English   Publishing type:Research paper (other academic)  

    In order to study three-nucleon force (3NF) effects in three-nucleon scattering we performed the measurements of the cross sections and the spin observables for the deuteron–proton (dp) scattering with the polarized deuteron beams at the incident energies up to 135 MeV/nucleon. Recently we have extended the measurements at the RIKEN RI Beam Factory (RIBF) with the polarized deuteron beams at 190, 250, and 300 MeV/nucleon.

    DOI: 10.1007/978-3-030-32357-8_84

  • Nuclear spin physics via polarization measurements

    T. Wakasa

    Proceedings of Science   346   2019.8

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  • Development of a neutron detector with a high position resolution at intermediate energies Reviewed

    Y. Kubota, M. Sasano, T. Uesaka, M. Dozono, M. Itoh, S. Kawase, M. Kobayashi, C. S. Lee, H. Matsubara, K. Miki, H. Miya, Y. Ono, S. Ota, K. Sekiguchi, T. Shima, T. Taguchi, T. L. Tang, H. Tokieda, Tomotsugu Wakasa, T. Wakui, J. Yasuda, J. Zenihiro

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   914   32 - 41   2019.1

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    DOI: 10.1016/j.nima.2018.10.153

  • Development of a neutron detector with a high position resolution at intermediate energies Reviewed

    Y. Kubota, M. Sasano, T. Uesaka, M. Dozono, M. Itoh, S. Kawase, M. Kobayashi, C. S. Lee, H. Matsubara, K. Miki, H. Miya, Y. Ono, S. Ota, K. Sekiguchi, T. Shima, T. Taguchi, T. L. Tang, H. Tokieda, T. Wakasa, T. Wakui, J. Yasuda, J. Zenihiro

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   914   32 - 41   2019.1

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    DOI: 10.1016/j.nima.2018.10.153

  • Extraction of the Landau-Migdal Parameter from the Gamow-Teller Giant Resonance in Sn-132 Reviewed

    Yasuda J, Sasano M, Zegers R. G. T, Baba H, Bazin D, Chao W, Dozono M, Fukuda N, Inabe N, Isobe T, Jhang G, Kameda D, Kaneko M, Kisamori K, Kobayashi M, Kobayashi N, Kobayashi T, Koyama S, Kondo Y, Krasznahorkay A. J, Kubo T, Kubota Y, Kurata-Nishimura M, Lee C. S, Lee J. W, Matsuda Y, Milman E, Michimasa S, Motobayashi T, Muecher D, Murakami T, Nakamura T, Nakatsuka N, Ota S, Otsu H, Panin V, Powell W, Reichert S, Sakaguchi S, Sakai H, Sako M, Sato H, Shimizu Y, Shikata M, Shimoura S, Stuhl L, Sumikama T, Suzuki H, Tangwancharoen S, Takaki M, Takeda H, Tako T, Togano Y, Tokieda H, Tsubota J, Uesaka T, Wakasa T, Yako K, Yoneda K, Zenihiro J

    PHYSICAL REVIEW LETTERS   121 ( 13 )   2018.9

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    Extraction of the Landau-Migdal Parameter from the Gamow-Teller Giant Resonance in Sn-132
    The key parameter to discuss the possibility of the pion condensation in nuclear matter, i.e., the so-called Landau-Migdal parameter g', was extracted by measuring the double-differential cross sections for the (p, n) reaction at 216 MeV/u on a neutron-rich doubly magic unstable nucleus, Sn-132 with the quality comparable to data taken with stable nuclei. The extracted strengths for Gamow-Teller (GT) transitions from Sn-132 leading to Sb-132 exhibit the GT giant resonance (GTR) at the excitation energy of 16.3 +/- 0.4(stat) +/- 0.4(syst) MeV with the width of Gamma = 4.7 +/- 0.8 MeV. The integrated GT strength up to Ex = 25 MeV is S-GT(-) = 53 +/- 5(stat)(-10)(+11)(syst), corresponding to 56&#37; of Ikeda's sum rule of 3(N - Z) = 96. The present result accurately constrains the Landau-Migdal parameter as g' = 0.68 +/- 0.07, thanks to the high sensitivity of the GTR energy to g'. In combination with previous studies on the GTR for Zr-90 and Pb-208, the result of this work shows the constancy of this parameter in the nuclear chart region with (N - Z)/A = 0.11 to 0.24 and A = 90 to 208.

    DOI: 10.1103/PhysRevLett.121.132501

  • Proton elastic scattering at 200 A MeV and high momentum transfers of 1.7-2.7 fm -1 as a probe of the nuclear matter density of 6 He Reviewed

    S. Chebotaryov, Satoshi Sakaguchi, T. Uesaka, T. Akieda, Y. Ando, M. Assie, D. Beaumel, N. Chiga, M. Dozono, A. Galindo-Uribarri, B. Heffron, A. Hirayama, T. Isobe, K. Kaki, S. Kawase, W. Kim, T. Kobayashi, H. Kon, Y. Kondo, Y. Kubota, S. Leblond, H. Lee, T. Lokotko, Y. Maeda, Y. Matsuda, K. Miki, E. Milman, T. Motobayashi, T. Mukai, S. Nakai, T. Nakamura, A. Ni, T. Noro, S. Ota, H. Otsu, T. Ozaki, V. Panin, S. Park, A. Saito, H. Sakai, M. Sasano, H. Sato, K. Sekiguchi, Y. Shimizu, I. Stefan, L. Stuhl, M. Takaki, K. Taniue, K. Tateishi, S. Terashima, Y. Togano, T. Tomai, Y. Wada, Tomotsugu Wakasa, T. Wakui, A. Watanabe, H. Yamada, Zh Yang, M. Yasuda, J. Yasuda, K. Yoneda, J. Zenihiro

    Progress of Theoretical and Experimental Physics   2018 ( 5 )   2018.5

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    DOI: 10.1093/ptep/pty048

  • Proton elastic scattering at 200 A MeV and high momentum transfers of 1.7-2.7 fm -1 as a probe of the nuclear matter density of 6 He

    S. Chebotaryov, S. Sakaguchi, T. Uesaka, T. Akieda, Y. Ando, M. Assie, D. Beaumel, N. Chiga, M. Dozono, A. Galindo-Uribarri, B. Heffron, A. Hirayama, T. Isobe, K. Kaki, S. Kawase, W. Kim, T. Kobayashi, H. Kon, Y. Kondo, Y. Kubota, S. Leblond, H. Lee, T. Lokotko, Y. Maeda, Y. Matsuda, K. Miki, E. Milman, T. Motobayashi, T. Mukai, S. Nakai, T. Nakamura, A. Ni, T. Noro, S. Ota, H. Otsu, T. Ozaki, V. Panin, S. Park, A. Saito, H. Sakai, M. Sasano, H. Sato, K. Sekiguchi, Y. Shimizu, I. Stefan, L. Stuhl, M. Takaki, K. Taniue, K. Tateishi, S. Terashima, Y. Togano, T. Tomai, Y. Wada, T. Wakasa, T. Wakui, A. Watanabe, H. Yamada, Zh Yang, M. Yasuda, J. Yasuda, K. Yoneda, J. Zenihiro

    Progress of Theoretical and Experimental Physics   2018 ( 5 )   2018.5

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    DOI: 10.1093/ptep/pty048

  • alpha-unbound levels in Ar-34 from Ar-36(p,t)Ar-34 reaction measurements and implications for the astrophysical S-30(alpha, p)Cl-33 reaction rate Reviewed

    Long A. M, Adachi T, Beard M, Berg G. P. A, Couder M, deBoer R. J, Dozono M, Gorres J, Fujita H, Fujita Y, Hatanaka K, Ishikawa D, Kubo T, Matsubara H, Namiki Y, O'Brien S, Ohkuma Y, Okamura H, Ong H. J, Patel D, Sakemi Y, Shimbara Y, Suzuki S, Talwar R, Tamii A, Volya A, Wakasa T, Watanabe R, Wiescher M, Yamada R, Zenihiro J

    PHYSICAL REVIEW C   97 ( 5 )   2018.5

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    alpha-unbound levels in Ar-34 from Ar-36(p,t)Ar-34 reaction measurements and implications for the astrophysical S-30(alpha, p)Cl-33 reaction rate

    DOI: 10.1103/PhysRevC.97.054613

  • α -unbound levels in Ar 34 from Ar 36 (p,t) Ar 34 reaction measurements and implications for the astrophysical S 30 (α,p) Cl 33 reaction rate Reviewed

    A. M. Long, T. Adachi, M. Beard, G. P.A. Berg, M. Couder, R. J. Deboer, M. Dozono, J. Görres, H. Fujita, Y. Fujita, K. Hatanaka, D. Ishikawa, T. Kubo, H. Matsubara, Y. Namiki, S. O'Brien, Y. Ohkuma, H. Okamura, H. J. Ong, D. Patel, Y. Sakemi, Y. Shimbara, S. Suzuki, R. Talwar, A. Tamii, A. Volya, Tomotsugu Wakasa, R. Watanabe, M. Wiescher, R. Yamada, J. Zenihiro

    97 ( 5 )   2018.5

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    The S30(α,p)Cl33 reaction has been identified in several type-1 x-ray burst (XRB) sensitivity studies as a significant reaction within the αp process, possibly influencing not only the abundances of burst ashes but also the bolometric shape of double-peaked light curves coming from certain XRB systems. Given the dearth of experimental data on the S30(α,p) Cl33 reaction at burst temperatures, we have performed high energy-resolution forward-angle Ar36(p,t)Ar34 measurements in order to identify levels in Ar34 that could appear as resonances in the S30(α,p)Cl33 reaction. Energies of levels identified in this work, along with model-based assumptions for spin assignments and spectroscopic factors, were then used to determine a rate for the S30(α,p)Cl33 reaction based on a narrow-resonance formalism. The rates determined in this work are then compared with two standard Hauser-Feshbach model predictions over a range of XRB temperatures.

    DOI: 10.1103/PhysRevC.97.054613

  • Exclusive quasi-free proton knockout from oxygen isotopes at intermediate energies Reviewed

    Shoichiro Kawase, Tomohiro Uesaka, Tsz Leung Tang, Didier Beaumel, Masanori Dozono, Taku Fukunaga, Toshihiko Fujii, Naoki Fukuda, Alfredo Galindo-Uribarri, Sanghoon Hwang, Naoto Inabe, Takahiro Kawabata, Tomomi Kawahara, Wooyoung Kim, Keiichi Kisamori, Motoki Kobayashi, Toshiyuki Kubo, Yuki Kubota, Kensuke Kusaka, Cheongsoo Lee, Yukie Maeda, Hiroaki Matsubara, Shin Michimasa, Hiroyuki Miya, Tetsuo Noro, Yuki Nozawa, Alexandre Obertelli, Kazuyuki Ogata, Shinsuke Ota, Elizabeth Padilla-Rodal, Satoshi Sakaguchi, Hideyuki Sakai, Masaki Sasano, Susumu Shimoura, Samvel Stepanyan, Hiroshi Suzuki, Tomokazu Suzuki, Motonobu Takaki, Hiroyuki Takeda, Atsushi Tamii, Hiroshi Tokieda, Tomotsugu Wakasa, Takashi Wakui, Kentaro Yako, Jumpei Yasuda, Yoshiyuki Yanagisawa, Rin Yokoyama, Kazuki Yoshida, Koichi Yoshida, Juzo Zenihiro

    Progress of Theoretical and Experimental Physics   2018 ( 2 )   2018.2

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    DOI: 10.1093/ptep/pty011

  • Exclusive quasi-free proton knockout from oxygen isotopes at intermediate energies

    Shoichiro Kawase, Tomohiro Uesaka, Tsz Leung Tang, Didier Beaumel, Masanori Dozono, Taku Fukunaga, Toshihiko Fujii, Naoki Fukuda, Alfredo Galindo-Uribarri, Sanghoon Hwang, Naoto Inabe, Takahiro Kawabata, Tomomi Kawahara, Wooyoung Kim, Keiichi Kisamori, Motoki Kobayashi, Toshiyuki Kubo, Yuki Kubota, Kensuke Kusaka, Cheongsoo Lee, Yukie Maeda, Hiroaki Matsubara, Shin Michimasa, Hiroyuki Miya, Tetsuo Noro, Yuki Nozawa, Alexandre Obertelli, Kazuyuki Ogata, Shinsuke Ota, Elizabeth Padilla-Rodal, Satoshi Sakaguchi, Hideyuki Sakai, Masaki Sasano, Susumu Shimoura, Samvel Stepanyan, Hiroshi Suzuki, Tomokazu Suzuki, Motonobu Takaki, Hiroyuki Takeda, Atsushi Tamii, Hiroshi Tokieda, Tomotsugu Wakasa, Takashi Wakui, Kentaro Yako, Jumpei Yasuda, Yoshiyuki Yanagisawa, Rin Yokoyama, Kazuki Yoshida, Koichi Yoshida, Juzo Zenihiro

    Progress of Theoretical and Experimental Physics   2018 ( 2 )   2018.2

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    DOI: 10.1093/ptep/pty011

  • Complete set of deuteron analyzing powers from (d)over-right-arrowp elastic scattering at 190 MeV/nucleon Reviewed International journal

    K. Sekiguchi, H. Witala, T. Akieda, D. Eto, H. Kon, Y. Wada, A. Watanabe, S. Chebotaryov, M. Dozono, J. Golak, H. Kamada, S. Kawakami, Y. Kubota, Y. Maeda, K. Miki, E. Milman, #A. Ohkura, H. Sakai, @S. Sakaguchi, N. Sakamoto, M. Sasano, #Y. Shindo, R. Skibinski, H. Suzuki, #M. Tabata, T. Uesaka, #T. Wakasa, K. Yako, T. Yamamoto, T. Yanagisawa, #J. Yasuda

    Physical Review C   96 ( 6 )   2017.12

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    Complete set of deuteron analyzing powers from (d)over-right-arrowp elastic scattering at 190 MeV/nucleon

    DOI: 10.1103/PhysRevC.96.064001

  • Complete set of deuteron analyzing powers from d - p elastic scattering at 190 MeV/nucleon

    Physical Review C   96 ( 6 )   2017.12

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    DOI: 10.1103/PhysRevC.96.064001

  • Proton-induced knockout reactions with polarized and unpolarized beams Reviewed

    T. Wakasa, K. Ogata, T. Noro

    Progress in Particle and Nuclear Physics   96   32 - 87   2017.9

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    DOI: 10.1016/j.ppnp.2017.06.002

  • Neutron production cross sections for (d, n) reactions at 55 MeV Reviewed

    Tomotsugu Wakasa, S. Goto, M. Matsuno, S. Mitsumoto, T. Okada, H. Oshiro, Satoshi Sakaguchi

    Progress of Theoretical and Experimental Physics   2017 ( 8 )   2017.8

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    DOI: 10.1093/ptep/ptx099

  • Neutron production cross sections for (d, n) reactions at 55 MeV Reviewed

    T. Wakasa, S. Goto, M. Matsuno, S. Mitsumoto, T. Okada, H. Oshiro, S. Sakaguchi

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2017 ( 8 )   2017.8

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    DOI: 10.1093/ptep/ptx099

  • Neutron production cross sections for (d, n) reactions at 55 MeV Reviewed International journal

    #T. Wakasa, @S. Goto, @M. Matsuno, @S. Mitsumoto, @T. Okada, @H. Oshiro, and #S. Sakaguchi

    Progress of Theoretical and Experimental Physics   2017   083D01-1 - 083D01-11   2017.7

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  • Cross sections and analyzing ((p)over-bar, np) reactions of H-2, Li-6, and C-12 at 296 MeV Reviewed

    T. Wakasa, J. Yasuda, M. Dozono, T. Fukunaga, S. Gotanda, K. Hatanaka, K. Ishibashi, Y. Kanaya, S. Kimura, Y. Maeda, Y. Maeda, Y. Nishio, T. Noro, T. Nozoe, K. Ohnaka, S. Sakaguchi, Y. Sakemi, K. Sekiguchi, T. Taguchi, Y. Wada

    PHYSICAL REVIEW C   96 ( 1 )   2017.7

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    DOI: 10.1103/PhysRevC.96.014604

  • Cross sections and analyzing powers for (p - ,np) reactions of H 2, Li 6, and C 12 at 296 MeV CROSS SECTIONS and ANALYZING POWERS for (... T. WAKASA et al. Reviewed

    T. Wakasa, J. Yasuda, M. Dozono, T. Fukunaga, S. Gotanda, K. Hatanaka, K. Ishibashi, Y. Kanaya, S. Kimura, Y. Maeda, Y. Maeda, Y. Nishio, T. Noro, T. Nozoe, K. Ohnaka, S. Sakaguchi, Y. Sakemi, K. Sekiguchi, T. Taguchi, Y. Wada

    Physical Review C   96 ( 1 )   2017.7

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    DOI: 10.1103/PhysRevC.96.014604

  • Proton-induced knockout reactions with polarized and unpolarized beams Reviewed

    T. Wakasa, K. Ogata, T. Noro

    Progress in Particle and Nuclear Physics   2017.6

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    Proton-induced knockout reactions with polarized and unpolarized beams

  • Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three-Nucleon Forces Reviewed

    K. Sekiguchi, Y. Wada, A. Watanabe, D. Eto, T. Akieda, H. Kon, K. Miki, N. Sakamoto, H. Sakai, M. Sasano, Y. Shimizu, H. Suzuki, T. Uesaka, Y. Yanagisawa, M. Dozono, S. Kawase, Y. Kubota, C. S. Lee, K. Yako, Y. Maeda, S. Kawakami, T. Yamamoto, S. Sakaguchi, T. Wakasa, J. Yasuda, A. Ohkura, Y. Shindo, M. Tabata, E. Milman, S. Chebotaryov, H. Okamura, T. L. Tang

    Few-Body Systems   58 ( 2 )   2017.3

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    DOI: 10.1007/s00601-017-1213-6

  • Cross sections and analyzing powers for (p⃗,np) reactions of 2H, 6Li, and 12C at 296 MeV Reviewed International journal

    96   014604-1 - 014604-10   2017.1

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    We report measurements of cross sections and analyzing powers for nucleon-knockout (p⃗,np) reactions of 2H, 6Li, and 12C at 296 MeV using the RCNP NPOL3 neutron detector and large acceptance spectrometer. The 1s and 1p knockout reactions were successfully separated with a separation-energy resolution of approximately 6 MeV. The resulting data were compared with plane-wave and distorted-wave impulse approximation calculations employing the nucleon-nucleon t matrix in free space. No significant differences were identified in the case of the present analyzing power data, in contrast to the significant reductions observed in (p⃗,2p) values. The conventional Pauli blocking and nuclear binding effects with the g matrix and the relativistic effect of nucleon mass reduction in the nuclei are also discussed.

  • Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three- Nucleon Forces Reviewed International journal

    K. Sekiguchi, Y. Wada, A. Watanabe, D. Eto, T. Akieda, H. Kon, K. Miki, N. Sakamoto, H. Sakai, M. Sasano, Y. Shimizu, H. Suzuki, T. Uesaka, Y. Yanagisawa, M. Dozono, S. Kawase, Y. Kubota, C.S. Lee, K. Yako, Y. Maeda, S. Kawakami, T. Yamamoto, S. Sakaguchi, T. Wakasa, J. Yasuda, A. Ohkura, Y. Shindo, M. Tabata, E. Milman, S. Chebotaryov, H. Okamura, and T.L. Tang

    Few-Body Systems   58   48   2017.1

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  • Inverse kinematics (p, n) reactions studies using the WINDS slow neutron detector and the SAMURAI spectrometer Reviewed International journal

    @J. Yasuda, M. Sasano, R.G.T. Zegers, H. Baba, W. Chao, M. Dozono, N. Fukuda, N. Inabe, T. Isobe, G. Jhang, D. Kameda, T. Kubo, M. Kurata-Nishimura, E. Milman, T. Motobayashi, H. Otsu, V. Panin, W. Powell, H. Sakai, M. Sako, H. Sato, Y. Shimizu, L. Stuhl, H. Suzuki, S. Tangwancharoen, H. Takeda, T. Uesaka, K. Yoneda, J. Zenihiro, T. Kobayashi, T. Sumikama, T. Tako, T. Nakamura, Y. Kondo, Y. Togano, M. Shikata, J. Tsubota, K. Yako, S. Shimoura, S. Ota, S. Kawase, Y. Kubota, M. Takaki, S. Michi- masa, K. Kisamori, C.S. Lee, and H. Tokieda, M. Kobayashi, S. Koyama, N. Kobayashi, #T. Wakasa, S. Sakaguchi, A. Krasznahorkay, T. Murakami, N. Nakatsuka, M. Kaneko, Y. Matsuda, D. Mucher, S. Reichert, D. Bazin, and J.W. Lee

    Nucl. Instrum. Methods Phys. Res. B   376   393   2016.6

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  • Inverse kinematics (p, n) reactions studies using the WINDS slow neutron detector and the SAMURAI spectrometer Reviewed

    J. Yasuda, M. Sasano, R. G. T. Zegers, H. Baba, W. Chao, M. Dozono, N. Fukuda, N. Inabe, T. Isobe, G. Jhang, D. Kameda, T. Kubo, M. Kurata-Nishimura, E. Milman, T. Motobayashi, H. Otsu, V. Panin, W. Powell, H. Sakai, M. Sako, H. Sato, Y. Shimizu, L. Stuhl, H. Suzuki, S. Tangwancharoen, H. Takeda, T. Uesaka, K. Yoneda, J. Zenihiro, T. Kobayashi, T. Sumikama, T. Tako, T. Nakamura, Y. Kondo, Y. Togano, M. Shikata, J. Tsubota, K. Yako, S. Shimoura, S. Ota, S. Kawase, Y. Kubota, M. Takaki, S. Michimasa, K. Kisamori, C. S. Lee, H. Tokieda, M. Kobayashi, S. Koyama, N. Kobayashi, T. Wakasa, S. Sakaguchi, A. Krasznahorkay, T. Murakami, N. Nakatsuka, M. Kaneko, Y. Matsuda, D. Mucher, S. Reichert, D. Bazin, J. W. Lee

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS   376   393 - 396   2016.6

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    DOI: 10.1016/j.nimb.2016.02.007

  • Inverse kinematics (p, n) reactions studies using the WINDS slow neutron detector and the SAMURAI spectrometer Reviewed

    J. Yasuda, M. Sasano, R. G.T. Zegers, H. Baba, W. Chao, M. Dozono, N. Fukuda, N. Inabe, T. Isobe, G. Jhang, D. Kameda, T. Kubo, M. Kurata-Nishimura, E. Milman, T. Motobayashi, H. Otsu, V. Panin, W. Powell, H. Sakai, M. Sako, H. Sato, Y. Shimizu, L. Stuhl, H. Suzuki, S. Tangwancharoen, H. Takeda, T. Uesaka, K. Yoneda, J. Zenihiro, T. Kobayashi, T. Sumikama, T. Tako, T. Nakamura, Y. Kondo, Y. Togano, M. Shikata, J. Tsubota, K. Yako, S. Shimoura, S. Ota, S. Kawase, Y. Kubota, M. Takaki, S. Michimasa, K. Kisamori, C. S. Lee, H. Tokieda, M. Kobayashi, S. Koyama, N. Kobayashi, T. Wakasa, S. Sakaguchi, A. Krasznahorkay, T. Murakami, N. Nakatsuka, M. Kaneko, Y. Matsuda, D. Mucher, S. Reichert, D. Bazin, J. W. Lee

    Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   376   393 - 396   2016.6

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    DOI: 10.1016/j.nimb.2016.02.007

  • Development of a Magneto-Optical Trap System of Francium Atoms for the Electron Electric-Dipole-Moment Search Reviewed International journal

    K. Harada, T. Aoki, K. Kato, H. Kawamura, T. Inoue, T. Aoki, A. Uchiyama, K. Sakamoto, S. Ito, M. Itoh, T, Hayamizu, A. Hatakeyama, K. Hatanaka, #T. Wakasa, and Y. Sakemi

    J. Phys. Conf. Ser.   691   012017   2016.3

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  • Development of a Magneto-Optical Trap System of Francium Atoms for the Electron Electric-Dipole-Moment Search Reviewed

    K. Harada, T. Aoki, K. Kato, H. Kawamura, T. Inoue, T. Aoki, A. Uchiyama, K. Sakamoto, S. Ito, M. Itoh, T. Hayamizu, A. Hatakeyama, K. Hatanaka, T. Wakasa, Y. Sakemi

    24th Annual International Laser Physics Workshop, LPHYS 2015 Journal of Physics: Conference Series   691 ( 1 )   2016.3

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    DOI: 10.1088/1742-6596/691/1/012017

  • Laser frequency locking with 46 GHz offset using an electro-optic modulator for magneto-optical trapping of francium atoms Reviewed

    K. Harada, T. Aoki, S. Ezure, K. Kato, T. Hayamizu, H. Kawamura, T. Inoue, H. Arikawa, T. Ishikawa, T. Aoki, A. Uchiyama, K. Sakamoto, S. Ito, M. Itoh, S. Ando, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, H. S. Nataraj, Y. Shimizu, T. Sato, T. Wakasa, H. P. Yoshida, Y. Sakemi

    APPLIED OPTICS   55 ( 5 )   1164 - 1169   2016.2

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    DOI: 10.1364/AO.55.001164

  • Laser frequency locking with 46 GHz offset using an electro-optic modulator for magneto-optical trapping of francium atoms Reviewed

    K. Harada, T. Aoki, S. Ezure, K. Kato, T. Hayamizu, H. Kawamura, T. Inoue, H. Arikawa, T. Ishikawa, T. Aoki, A. Uchiyama, K. Sakamoto, S. Ito, M. Itoh, S. Ando, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, H. S. Nataraj, Y. Shimizu, T. Sato, T. Wakasa, H. P. Yoshida, Y. Sakemi

    Applied Optics   55 ( 5 )   1164 - 1169   2016.2

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    DOI: 10.1364/AO.55.001164

  • Study of Three-Nucleon Force Effect via Few-Nucleon Scattering Reviewed International journal

    Y. Wada, K. Sekiguchi, U. Gebauer, J. Miyazaki, T. Taguchi, M. Dozono, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, H. Suzuki, T. Uesaka, S. Kawase, Y. Kubota, C.S. Lee, T.L. Tang, K. Yako, Y. Maeda, K. Miki, H. Okamura, #S. Sakaguchi, and #T. Wakasa

    Int. J. Mod. Phys. Conf. Ser.   40   1660070   2016.2

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  • Study of Gamow-Teller transitions from 132Sn via the (p, n) reaction at 220 MeV/u in inverse kinematics

    M. Sasano, J. Yasuda, R. G.T. Zegers, H. Baba, W. Chao, M. Dozono, N. Fukuda, N. Inabe, T. Isobe, G. Jhang, D. Kamaeda, T. Kubo, M. Kurata-Nishimura, E. Milman, T. Motobayashi, H. Otsu, V. Panin, W. Powell, H. Sakai, M. Sako, H. Sato, Y. Shimizu, L. Stuhl, H. Suzuki, S. Tangwancharoen, H. Takeda, T. Uesaka, K. Yoneda, J. Zenihiro, T. Kobayashi, T. Sumikama, T. Tako, T. Nakamura, Y. Kondo, Y. Togano, M. Shikata, J. Tsubota, K. Yako, S. Shimoura, S. Ota, S. Kawase, Y. Kubota, M. Takaki, S. Michimasa, K. Kisamori, C. S. Lee, H. Tokieda, M. Kobayashi, S. Koyama, N. Kobayashi, T. Wakasa, S. Sakaguchi, A. Krasznahorkay, T. Murakami, N. Nakatsuka, M. Kaneko, Y. Matsuda, D. Mucher, S. Reichert, D. Bazin, J. W. Lee

    EPJ Web of Conferences   107   2016.1

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    DOI: 10.1051/epjconf/201610706003

  • Study of Gamow-Teller transitions from 132Sn via the (p, n) reaction at 220 MeV/u in inverse kinematics Reviewed

    M. Sasano, J. Yasuda, R. G.T. Zegers, H. Baba, W. Chao, M. Dozono, N. Fukuda, N. Inabe, T. Isobe, G. Jhang, D. Kamaeda, T. Kubo, M. Kurata-Nishimura, E. Milman, T. Motobayashi, H. Otsu, V. Panin, W. Powell, H. Sakai, M. Sako, H. Sato, Y. Shimizu, L. Stuhl, H. Suzuki, S. Tangwancharoen, H. Takeda, T. Uesaka, K. Yoneda, J. Zenihiro, T. Kobayashi, T. Sumikama, T. Tako, T. Nakamura, Y. Kondo, Y. Togano, M. Shikata, J. Tsubota, K. Yako, S. Shimoura, S. Ota, S. Kawase, Y. Kubota, M. Takaki, S. Michimasa, K. Kisamori, C. S. Lee, H. Tokieda, M. Kobayashi, S. Koyama, N. Kobayashi, T. Wakasa, S. Sakaguchi, A. Krasznahorkay, T. Murakami, N. Nakatsuka, M. Kaneko, Y. Matsuda, D. Mucher, S. Reichert, D. Bazin, J. W. Lee

    7th International Conference on Nuclear Structure and Related Topics, NSRT 2015 EPJ Web of Conferences   107   2016.1

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    DOI: 10.1051/epjconf/201610706003

  • Spectroscopy of Single-Particle States in Oxygen Isotopes via (p⃗, 2p) Reaction Reviewed International journal

    6   020003   2015.6

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    The goal of this study is to determine the spin-orbit splitting of 1p proton orbits in oxygen isotopes. An experiment for the exclusive measurement of the (⃗p, 2p) reaction was carried out at the SHARAQ beamline at RI Beam Factory, RIKEN. Beam containing oxygen unstable isotopes with the kinetic energy of around 250 MeV bombarded a polarized solid proton target. Proton separation energy was calculated from the momentum vectors of two scattered protons. For 14O(⃗p, 2p), the transition strengths of the 14O(⃗p, 2p)13N reaction leading to the ground state and excited states were separated by the particle identification of the residual nucleus. As a result, 6.3 MeV of 1p spin-orbit splitting of 14O was obtained.

  • Spectroscopy of single-particle states in oxygen isotopes via the AO(p(pol), pN) reaction with polarized protons Reviewed International journal

    WAKASA TOMOTSUGU

    CNS-REP-93, Ann.Report 2013, p.9 (2015)   55   2015.4

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  • Experimental search for the electron electric dipole moment with laser cooled francium atoms

    T. Inoue, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Ishikawa, M. Itoh, K. Kato, H. Kawamura, A. Uchiyama, T. Aoki, K. Asahi, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, H. S. Nataraj, T. Sato, Y. Shimizu, T. Wakasa, H. P. Yoshida, A. Yoshimi, Y. Sakemi

    HYPERFINE INTERACTIONS   230 ( 1-3 )   157 - 162   2015.4

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    DOI: 10.1007/s10751-014-1100-1

  • Experimental search for the electron electric dipole moment with laser cooled francium atoms Reviewed International journal

    T. Inoue, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Ishikawa, M. Itoh, K. Kato, H. Kawamura, A. Uchiyama, T. Aoki, K. Asahi, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, H.S. Nataraj, T. Sato, Y. Shimizu, #T. Wakasa, H.P. Yoshida, A. Yoshimi, and Y. Sakemi

    Hyperfine Interact.   230   157   2015.4

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  • Analysis of proton-proton elastic scattering in SHARAQ04 experiment Reviewed International journal

    WAKASA TOMOTSUGU

    CNS-REP-93, Ann.Report 2013, p.11 (2015)   2015.4

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  • Complete Set of Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three Nucleon Forces Reviewed

    K. Sekiguchi, H. Okamura, Y. Wada, J. Miyazaki, T. Taguchi, U. Gebauer, M. Dozono, S. Kawase, Y. Kubota, C. S. Lee, Y. Maeda, T. Mashiko, K. Miki, S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, T. Wakasa, K. Yako

    Few-Body Systems   55 ( 8-10 )   717 - 719   2014.8

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    DOI: 10.1007/s00601-014-0867-6

  • Measurement of the H-2(p, n) Breakup Reaction at 170 MeV and the Three-Nucleon Force Effects Reviewed

    Y. Maeda, T. Saito, H. Miyasako, T. Uesaka, S. Ota, S. Kawase, T. Kikuchi, H. Tokieda, T. Kawabata, K. Yako, T. Wakasa, S. Sakaguchi, R. Chen, H. Sakaguchi, T. Shima, T. Suzuki, A. Tamii

    FEW-BODY SYSTEMS   55 ( 8-10 )   729 - 732   2014.8

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    DOI: 10.1007/s00601-014-0868-5

  • Complete Set of Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three Nucleon Forces Reviewed

    K. Sekiguchi, H. Okamura, Y. Wada, J. Miyazaki, T. Taguchi, U. Gebauer, M. Dozono, S. Kawase, Y. Kubota, C. S. Lee, Y. Maeda, T. Mashiko, K. Miki, S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, T. Wakasa, K. Yako

    FEW-BODY SYSTEMS   55 ( 8-10 )   717 - 719   2014.8

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    DOI: 10.1007/s00601-014-0867-6

  • Measurement of the 2H(p, n) Breakup Reaction at 170 MeV and the Three-Nucleon Force Effects Reviewed

    Y. Maeda, T. Saito, H. Miyasako, T. Uesaka, S. Ota, S. Kawase, T. Kikuchi, H. Tokieda, T. Kawabata, K. Yako, T. Wakasa, S. Sakaguchi, R. Chen, H. Sakaguchi, T. Shima, T. Suzuki, A. Tamii

    Few-Body Systems   55 ( 8-10 )   729 - 732   2014.8

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    DOI: 10.1007/s00601-014-0868-5

  • Complete set of deuteron analyzing powers for dp elastic scattering at 250-294 MeV/nucleon and the three-nucleon force Reviewed

    Physical Review C - Nuclear Physics   89 ( 6 )   2014.6

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    DOI: 10.1103/PhysRevC.89.064007

  • Complete set of deuteron analyzing powers for dp elastic scattering at 250-294 MeV/nucleon and the three-nucleon force Reviewed

    K. Sekiguchi, Y. Wada, J. Miyazaki, H. Witala, M. Dozono, U. Gebauer, J. Golak, H. Kamada, S. Kawase, Y. Kubota, C. S. Lee, Y. Maeda, T. Mashiko, K. Miki, A. Nogga, H. Okamura, T. Saito, H. Sakai, S. Sakaguchi, N. Sakamoto, M. Sasano, Y. Shimizu, R. Skibinski, H. Suzuki, T. Taguchi, K. Takahashi, T. L. Tang, T. Uesaka, T. Wakasa, K. Yako

    PHYSICAL REVIEW C   89 ( 6 )   2014.6

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    DOI: 10.1103/PhysRevC.89.064007

  • Spectroscopy of single-particle states in oxygen isotopes via the (p(pol) pN) reaction with polarized protons International journal

    WAKASA TOMOTSUGU, J. Yasuda, T. Fukunaga

    CNS-REP-92, p.13 (2014)   92   2014.4

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  • Search for a permanent EDM using laser cooled radioactive atom Reviewed

    Hirokazu Kawamura, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Inoue, T. Ishikawa, M. Itoh, K. Kato, T. Kato, H. S. Nataraj, T. Sato, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, Y. Shimizu, T. Wakasa, H. P. Yoshida, Y. Sakemi

    EPJ Web of Conferences   66   2014.4

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    Search for a permanent EDM using laser cooled radioactive atom
    The search for the electric-dipole moment (EDM) of laser-cooled francium (Fr) atoms could lead to a measurement for the electron EDM. It is predicted that the electron EDM would be enhanced by approximately three orders of magnitude in heavy atoms such as Fr. Laser-cooling and trapping techniques are expected to suppress statistical and systematic errors in precision measurements. The magneto-optical trap was achieved using stable rubidium in a developing factory of laser-cooled radioactive atoms. In light of the results from the rubidium experiments, we found that an upgrade of each apparatus is preferred for Fr trapping. © Owned by the authors, published by EDP Sciences, 2014.

    DOI: 10.1051/epjconf/20146605009

  • Development of the measurement system for the search of an electric dipole moment of the electron with laser-cooled francium atoms Reviewed

    T. Inoue, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Ishikawa, M. Itoh, K. Kato, T. Kato, H. Kawamura, H. S. Nataraj, T. Sato, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, Y. Shimizu, T. Wakasa, H. P. Yoshida, Y. Sakemi

    EPJ Web of Conferences   66   2014.4

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    Development of the measurement system for the search of an electric dipole moment of the electron with laser-cooled francium atoms
    We plan to measure the permanent electric dipole moment (EDM) of the electron, which has the sensitivity to the CP violation in theories beyond the standard model by using the laser-cooled francium (Fr) atom. This paper reports the present status of the EDM measurement system. A high voltage application system was constructed in order to produce the strong electric field (100 kV/cm) needed for the experiment. After conditioning, the leakage current was 10 pA when a high voltage of 43 kV was applied. Also, a drift of an environmental field was measured at the planned location of the Fr-EDM experiment. The drift is suppressed at present down to the level of 10 pT by installing a 4-layermagnetic shield. Improvements are still needed to reach the required field stability of 1 fT. © Owned by the authors, published by EDP Sciences, 2014.

    DOI: 10.1051/epjconf/20146605008

  • Development of francium atomic beam for the search of the electron electric dipole moment Reviewed

    Tomoya Sato, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Inoue, T. Ishikawa, M. Itoh, K. Kato, T. Kato, H. Kawamura, H. S. Nataraj, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, Y. Shimizu, T. Wakasa, H. P. Yoshida, Y. Sakemi

    EPJ Web of Conferences   66   2014.4

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    Development of francium atomic beam for the search of the electron electric dipole moment
    For the measurement of the electron electric dipole moment using Fr atoms, a Fr ion-atom conversion is one of the most critical process. An ion-atom converter based on the "orthotropic" type of Fr source has been developed. This converter is able to convert a few keV Fr ion beam to a thermal atomic beam using a cycle of the surface ionization and neutralization. In this article, the development of the converter is reported. © Owned by the authors, published by EDP Sciences, 2014.

    DOI: 10.1051/epjconf/20146605019

  • Complete set of deuteron analyzing powers for dp elastic scattering at intermediate energies and three nucleon forces Reviewed

    K. Sekiguchi, H. Okamura, Y. Wada, J. Miyazaki, T. Taguchi, U. Gebauer, M. Dozono, S. Kawase, Y. Kubota, C. S. Lee, Y. Maeda, T. Mashiko, K. Miki, S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, T. Wakasa, K. Yako

    2013 International Nuclear Physics Conference, INPC 2013 EPJ Web of Conferences   66   2014.4

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    DOI: 10.1051/epjconf/20146603076

  • Complete Set of Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three Nucleon Forces Reviewed International journal

    WAKASA TOMOTSUGU

    Few-Body Systems 55, 717 (2014)   55   2014.4

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    Complete Set of Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three Nucleon Forces

  • Complete set of deuteron analyzing powers for dp elastic scattering at 250-294 MeV/nucleon and the three-nucleon force Reviewed International journal

    WAKASA TOMOTSUGU

    Phys.Rev. C 89, 064007 (2014)   89   2014.4

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    Complete set of deuteron analyzing powers for dp elastic scattering at 250-294 MeV/nucleon and the three-nucleon force

  • Measurement of the 2H(p, n) Breakup Reaction at 170 MeV and the Three-Nucleon Force Effects Reviewed International journal

    WAKASA TOMOTSUGU

    Few-Body Systems 55, 729 (2014)   55   2014.4

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    Measurement of the 2H(p, n) Breakup Reaction at 170 MeV and the Three-Nucleon Force Effects

  • Complete Set of Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three Nucleon Forces Reviewed International journal

    K. Sekiguchi, H. Okamura, Y. Wada, J. Miyazaki, T. Taguchi, U. Gebauer, M. Dozono, S. Kawase, Y. Kubota, C.S. Lee, Y. Maeda, T. Mashiko, K. Miki, #S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, #T. Wakasa, and K. Yako

    EPJ Web Conf.   66   03076   2014.3

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  • Observation of Low- and High-Energy Gamow-Teller Phonon Excitations in Nuclei Reviewed

    Y. Fujita, H. Fujita, T. Adachi, C. L. Bai, A. Algora, G. P. A. Berg, P. von Brentano, G. Colo, M. Csatlos, J. M. Deaven, E. Estevez-Aguado, C. Fransen, D. De Frenne, K. Fujita, E. Ganioglu, C. J. Guess, J. Gulyas, K. Hatanaka, K. Hirota, M. Honma, D. Ishikawa, E. Jacobs, A. Krasznahorkay, H. Matsubara, K. Matsuyanagi, R. Meharchand, F. Molina, K. Muto, K. Nakanishi, A. Negret, H. Okamura, H. J. Ong, T. Otsuka, N. Pietralla, G. Perdikakis, L. Popescu, B. Rubio, H. Sagawa, P. Sarriguren, C. Scholl, Y. Shimbara, Y. Shimizu, G. Susoy, T. Suzuki, Y. Tameshige, A. Tamii, J. H. Thies, M. Uchida, T. Wakasa, M. Yosoi, R. G. T. Zegers, K. O. Zell, J. Zenihiro

    PHYSICAL REVIEW LETTERS   112 ( 11 )   2014.3

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    DOI: 10.1103/PhysRevLett.112.112502

  • Observation of low- and high-energy gamow-teller phonon excitations in nuclei Reviewed

    Physical Review Letters   112 ( 11 )   2014.3

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    DOI: 10.1103/PhysRevLett.112.112502

  • Development of francium atomic beam for the search of the electron electric dipole moment Reviewed International journal

    T. Sato, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Inoue, T. Ishikawa, M. Itoh, K. Kato, T. Kato, H. Kawamura, H.S. Nataraj, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, Y. Shimizu, #T. Wakasa, H.P. Yoshida, and Y. Sakemi

    EPJ Web Conf.   66   05019   2014.3

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  • Search for a permanent EDM using laser cooled radioactive atom Reviewed International journal

    H. Kawamura, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Inoue, T. Ishikawa, M. Itoh, K. Kato, T. Kato, H.S. Nataraj, T. Sato, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, Y. Shimizu, #T. Wakasa, H.P. Yoshida, and Y. Sakemi

    EPJ Web Conf.   66   05009   2014.3

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  • Development of the Measurement System for the Search of an Electric Dipole Moment of the Electron with Laser-Cooled Francium Atoms Reviewed International journal

    T. Inoue, S. Ando, T. Aoki, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Ishikawa, M. Itoh, K. Kato, T. Kato, H. Kawamura, H.S. Nataraj, T. Sato, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, Y. Shimizu, #T. Wakasa, H.P. Yoshida, and Y. Sakemi

    EPJ Web Conf.   66   05008   2014.3

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  • Radioactive ion beam transportation for the fundamental symmetry study with laser-trapped atoms Reviewed

    Hiroshi Arikawa, S. Ando, T. Aoki, S. Ezure, K. Harada, T. Hayamizu, T. Inoue, T. Ishikawa, M. Itoh, H. Kawamura, K. Kato, T. Kato, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, H. S. Nataraj, T. Sato, Y. Shimizu, T. Wakasa, H. P. Yoshida, Y. Sakemi

    REVIEW OF SCIENTIFIC INSTRUMENTS   85 ( 2 )   02A732-1 - 3   2014.2

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    DOI: 10.1063/1.4852218

  • Radioactive ion beam transportation for the fundamental symmetry study with laser-trapped atoms Reviewed

    Hiroshi Arikawa, S. Ando, T. Aoki, S. Ezure, K. Harada, T. Hayamizu, T. Inoue, T. Ishikawa, M. Itoh, H. Kawamura, K. Kato, T. Kato, A. Uchiyama, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, H. S. Nataraj, T. Sato, Y. Shimizu, T. Wakasa, H. P. Yoshida, Y. Sakemi

    Review of Scientific Instruments   85 ( 2 )   2014.2

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    DOI: 10.1063/1.4852218

  • Complete set of deuteron analyzing powers for dp elastic scattering at intermediate ener- gies Reviewed International journal

    K. Sekiguchi, H. Okamura, Y. Wada, J. Miyazaki, T. Taguchi, U. Gebauer, M. Dozono, S. Kawase, Y. Kubota, C.S. Lee, Y. Maeda, T. Mashiko, K. Miki, #S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, #T. Wakasa, and K. Yako

    Phys. Part. Nucl.   45   190   2014.1

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  • Laser cooled francium factory for the electron electric dipole moment search Reviewed

    Tomohiro Hayamizu, Hiroshi Arikawa, Saki Ezure, Ken-ichi Harada, Takeshi Inoue, Taisuke Ishikawa, Masatoshi Itoh, Tomohiro Kato, Hirokazu Kawamura, Tomoya Sato, Shun Ando, Takahiro Aoki, Ko Kato, Aiko Uchiyama, Takatoshi Aoki, Takeshi Furukawa, Atsushi Hatakeyama, Kichiji Hatanaka, Kenichi Imai, Tetsuya Murakami, Huliyar S. Nataraj, Yasuhiro Shimizu, Tomotsugu Wakasa, Hidetomo P. Yoshida, Yasuhiro Sakemi

    JPS Conf. Proc.   1   013065   2014.1

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    Laser cooled francium factory for the electron electric dipole moment search

  • Complete set of deuteron analyzing powers for dp elastic scattering at intermediate energies Reviewed

    K. Sekiguchi, H. Okamura, Y. Wada, J. Miyazaki, T. Taguchi, U. Gebauer, M. Dozono, S. Kawase, Y. Kubota, C. S. Lee, Y. Maeda, T. Mashiko, K. Miki, S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, T. Wakasa, K. Yako

    PHYSICS OF PARTICLES AND NUCLEI   45 ( 1 )   190 - 192   2014.1

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    DOI: 10.1134/S1063779614010894

  • Complete set of deuteron analyzing powers for dp elastic scattering at intermediate energies Reviewed

    K. Sekiguchi, H. Okamura, Y. Wada, J. Miyazaki, T. Taguchi, U. Gebauer, M. Dozono, S. Kawase, Y. Kubota, C. S. Lee, Y. Maeda, T. Mashiko, K. Miki, S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, T. Wakasa, K. Yako

    Physics of Particles and Nuclei   45 ( 1 )   190 - 192   2014.1

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    DOI: 10.1134/S1063779614010894

  • Laser-cooled radioactive francium factory at CYRIC Reviewed

    Hirokazu Kawamura, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Inoue, T. Ishikawa, M. Itoh, T. Kato, T. Sato, T. Aoki, T. Furukawa, C. A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, H. S. Nataraj, Y. Shimizu, T. Wakasa, H. P. Yoshida, Y. Sakemi

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS   317   582 - 585   2013.12

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    DOI: 10.1016/j.nimb.2013.07.038

  • Erratum Level structure of 30S and its importance in the 26Si(α,p)29P and 29P(p,γ)30S reaction rates (Physical Review C - Nuclear Physics (2012) 86 (065805)) Reviewed

    S. Almaraz-Calderon, W. P. Tan, A. Aprahamian, M. Beard, G. P.A. Berg, B. Bucher, M. Couder, J. Görres, S. O'Brien, D. Patel, A. Roberts, K. Sault, M. Wiescher, C. R. Brune, T. N. Massey, Kunihiro Fujita, K. Hatanaka, D. Ishiwaka, H. Matsubara, H. Okamura, H. J. Ong, Y. Sakemi, Y. Shimizu, T. Suzuki, Y. Tameshige, A. Tamii, J. Zenihiro, T. Kubo, Y. Namiki, Y. Ohkuma, Y. Shimbara, S. Suzuki, R. Watanabe, R. Yamada, T. Adachi, Y. Fujita, H. Fujita, M. Dozono, T. Wakasa

    88 ( 5 )   2013.11

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    DOI: 10.1103/PhysRevC.88.059902

  • Level structure of S-30 and its importance in the Si-26(alpha, p)P-29 and P-29(p, gamma)S-30 reaction rates (vol 86, 065805, 2012) Reviewed

    Almaraz-Calderon S, Tan W. P, Aprahamian A, Beard M, Berg G. P. A, Bucher B, Couder M, Goerres J, O'Brien S, Patel D, Roberts A, Sault K, Wiescher M, Brune C. R, Massey T. N, Fujita K, Hatanaka K, Ishiwaka D, Matsubara H, Okamura H, Ong H. J, Sakemi Y, Shimizu Y, Suzuki T, Tameshige Y, Tamii A, Zenihiro J, Kubo T, Namiki Y, Ohkuma Y, Shimbara Y, Suzuki S, Watanabe R, Yamada R, Adachi T, Fujita Y, Fujita H, Dozono M, Wakasa T

    PHYSICAL REVIEW C   88 ( 5 )   2013.11

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    Level structure of S-30 and its importance in the Si-26(alpha, p)P-29 and P-29(p, gamma)S-30 reaction rates (vol 86, 065805, 2012)

    DOI: 10.1103/PhysRevC.88.059902

  • Measurement of all Deuteron Analyzing Powers for d + p Elastic Scattering at 294 MeV/Nucleon Reviewed

    54 ( 7-10 )   1335 - 1338   2013.8

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    We have measured all deuteron analyzing powers Ayd, Ayy, Axx, Axz for deuteron-proton elastic scattering at 294 MeV/nucleon in order to study the properties of three nucleon forces (3 NFs). Measurement was made at in an angular range of θc.m. = 35.6°-163.0°. Obtained data were compared with Faddeev calculations with and without the 3 NFs. At θc.m. ≲ 120° all the data have general agreement with the calculations, while the measured data at θc.m. ≳ 120° are not explained by any theoretical calculations. These results were consistent with those at 250 MeV/nucleon.

    DOI: 10.1007/s00601-013-0606-4

  • Measurement of all deuteron analyzing powers for $dp$ elastic scattering at 294 MeV/nucleon Reviewed

    Y. Wada, K. Sekiguchi, J. Miyazaki, T. Taguchi, M. Dozono, U. Gebauer, S. Kawase, Y. Kubota, C. S. Lee, Y. Maeda, T. Mashiko, K. Miki, S. Sakaguchi, H. Sakai, N. Sakamoto, M. Sasano, Y. Shimizu, K. Takahashi, R. Tang, T. Uesaka, T. Wakasa, K. Yako

    Few-Body Systems   54   1335 - 1338   2013.8

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    Measurement of all deuteron analyzing powers for $dp$ elastic scattering at 294 MeV/nucleon

    DOI: 10.1007/s00601-013-0606-4

  • Study of the Three-Nucleon Force Effects in the 2H(p, n) Breakup Reaction at 170 MeV Reviewed

    Y. Maeda, T. Saito, H. Miyasako, T. Uesaka, S. Ota, S. Kawase, T. Kikuchi, H. Tokieda, T. Kawabata, K. Yako, T. Wakasa, S. Sakaguchi, R. Chen, H. Sakaguchi, T. Shima, T. Suzuki, A. Tamii

    Few-Body Systems   54 ( 7-10 )   1311 - 1314   2013.8

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    DOI: 10.1007/s00601-012-0587-8

  • Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb Reviewed

    Jumpei Yasuda, Tomotsugu Wakasa, Midori Okamoto, Masanori Dozono, Kichiji Hatanaka, Munetake Ichimura, Sho Kuroita, Yukie Maeda, Tetsuo Noro, Yasuhiro Sakemi, Masaki Sasano, Kentaro Yako

    Progress of Theoretical and Experimental Physics   2013 ( 6 )   2013.6

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    DOI: 10.1093/ptep/ptt038

  • Extraction of anti-analog giant dipole resonance and neutron skin thickness for Pb-208 Reviewed

    Yasuda Jumpei, Wakasa Tomotsugu, Okamoto Midori, Dozono Masanori, Hatanaka Kichiji, Ichimura Munetake, Kuroita Sho, Maeda Yukie, Noro Tetsuo, Sakemi Yasuhiro, Sasano Masaki, Yako Kentaro

    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS   2013 ( 6 )   2013.6

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    Extraction of anti-analog giant dipole resonance and neutron skin thickness for Pb-208
    The anti-analog giant dipole resonance (AGDR) was separated from other excitations such as the spin-dipole resonance by multipole decomposition analysis of the Pb-208((p) over right arrow, (n) over right arrow) reaction at a bombarding energy of T-p = 296 MeV. The polarization transfer observables were found to be useful for carrying out this separation. The energy difference between the AGDR and the isobaric analog state (IAS) was determined to be Delta E = 8.69 +/- 0.36 MeV, where the uncertainty includes both statistical and systematic contributions. Theoretical calculations using the proton-neutron relativistic quasi-particle random phase approximation predicted a strong correlation between Delta E and the neutron skin thickness Delta R-pn. Under the assumption that the correlation predicted in this model is correct, the present Delta E value corresponds to a neutron skin thickness of Delta R-pn = 0.216 +/- 0.046 +/- 0.015 fm, where the first and second uncertainties are the experimental and theoretical uncertainties, respectively.

    DOI: 10.1093/ptep/ptt038

  • Search for electron EDM with laser cooled radioactive atom

    T. Inoue, H. Arikawa, S. Ezure, K. Harada, T. Hayamizu, T. Ishikawa, M. Itoh, T. Kato, H. Kawamura, H. S. Nataraj, T. Sato, T. Aoki, T. Furukawa, A. Hatakeyama, K. Hatanaka, K. Imai, T. Murakami, Y. Shimizu, Tomotsugu Wakasa, H. P. Yoshida, Y. Sakemi

    8th China-Japan Joint Nuclear Physics Symposium, CJJNPS 2012 8th China-Japan Joint Nuclear Physics Symposium, CJJNPS 2012   134 - 139   2013.6

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    DOI: 10.1063/1.4806789

  • Decomposing spin-dipole resonances by complete polarization transfer measurements

    T. Wakasa, M. Okamoto, M. Dozono, K. Hatanaka, M. Ichimura, S. Kuroita, Y. Maeda, H. Miyasako, T. Noro, T. Saito, Y. Sakemi, T. Yabe, K. Yako

    International Conference on Recent Trends in Nuclear Physics-2012, ICRTNP 2012 International Conference on Recent Trends in Nuclear Physics-2012, ICRTNP 2012   46 - 51   2013.5

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    DOI: 10.1063/1.4801675

  • Cross Section Enhancement in pd Reactions at Higher Energy Reviewed

    K. Sagara, S. Kuroita, T. Sueta, H. Shimoda, Y. Eguchi, K. Yashima, T. Yabe, M. Dozono, Y. Yamada, T. Wakasa, T. Noro, H. Matsubara, J. Zenihiro, Y. Tameshige, H. Okamura, A. Tamii, K. Hatanaka, T. Saito, Y. Maeda, H. Kamada

    FEW-BODY SYSTEMS   54 ( 1-4 )   469 - 473   2013.3

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    DOI: 10.1007/s00601-012-0432-0

  • Search for permanent EDM using laser cooled Fr atoms Reviewed

    Hirokazu Kawamura, T. Aoki, H. Arikawa, S. Ezure, T. Furukawa, K. Harada, A. Hatakeyama, K. Hatanaka, T. Hayamizu, K. Imai, T. Inoue, T. Ishikawa, M. Itoh, T. Kato, T. Murakami, H. S. Nataraj, T. Sato, Y. Shimizu, Tomotsugu Wakasa, H. P. Yoshida, Y. Sakemi

    Hyperfine Interactions   214 ( 1-3 )   133 - 139   2013.2

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    DOI: 10.1007/s10751-013-0788-7

  • Cross Section Enhancement in pd Reactions at Higher Energy Reviewed

    K. Sagara, S. Kuroita, T. Sueta, H. Shimoda, Y. Eguchi, K. Yashima, T. Yabe, M. Dozono, Y. Yamada, T. Wakasa, T. Noro, H. Matsubara, J. Zenihiro, Y. Tameshige, H. Okamura, A. Tamii, K. Hatanaka, T. Saito, Y. Maeda, H. Kamada

    Few-Body Systems   54 ( 1-4 )   469 - 473   2013.1

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    DOI: 10.1007/s00601-012-0432-0

  • Measurements of the Cross Sections and Ay for D(p, n) Inclusive Breakup Reaction at 170 MeV Reviewed

    Y. Maeda, T. Saito, H. Miyasako, T. Uesaka, S. Ota, S. Kawase, T. Kikuchi, H. Tokieda, T. Kawabata, K. Yako, T. Wakasa, S. Sakaguchi, R. Chen, H. Sakaguchi, T. Shima, T. Suzuki, A. Tamii

    Few-Body Systems   54 ( 1-4 )   291 - 294   2013.1

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    DOI: 10.1007/s00601-012-0378-2

  • Level structure of 30S and its importance in the 26Si(α,p)29P and 29P(p,γ)30S reaction rates Reviewed

    S. Almaraz-Calderon, W. P. Tan, A. Aprahamian, M. Beard, G. P.A. Berg, B. Bucher, M. Couder, J. Görres, S. O'Brien, D. Patel, A. Roberts, K. Sault, M. Wiescher, C. R. Brune, T. N. Massey, Kunihiro Fujita, K. Hatanaka, D. Ishiwaka, H. Matsubara, H. Okamura, H. J. Ong, Y. Sakemi, Y. Shimizu, T. Suzuki, Y. Tameshige, A. Tamii, J. Zenihiro, T. Kubo, Y. Namiki, Y. Ohkuma, Y. Shimbara, S. Suzuki, R. Watanabe, R. Yamada, T. Adachi, Y. Fujita, H. Fujita, M. Dozono, T. Wakasa

    86 ( 6 )   2012.12

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    The level structure of 30S was studied via the 28Si(3He,n) and 32S(p,t) reactions at the Nuclear Science Laboratory of the University of Notre Dame and the Research Center for Nuclear Physics of the University of Osaka, Japan. Important experimental information on the energy levels, decay branching ratios, and tentative spin assignments is extracted to calculate the reaction rates for 29P(p,γ)30S and 26Si(α,p)29P, which play a critical role in the reaction flow in explosive hydrogen burning.

    DOI: 10.1103/PhysRevC.86.065805

  • Level structure of30S and its importance in the26Si(α,p)29P and29P(p,γ)30S reaction rates Reviewed

    S. Almaraz-Calderon, W. P. Tan, A. Aprahamian, M. Beard, G. P. A. Berg, B. Bucher, M. Couder, J. Görres, S. O’Brien, D. Patel, A. Roberts, K. Sault, M. Wiescher, C. R. Brune, T. N. Massey, K. Fujita, K. Hatanaka, D. Ishiwaka, H. Matsubara, H. Okamura, H. J. Ong, Y. Sakemi, Y. Shimizu, T. Suzuki, Y. Tameshige, A. Tamii, J. Zenihiro, T. Kubo, Y. Namiki, Y. Ohkuma, Y. Shimbara, S. Suzuki, R. Watanabe, R. Yamada, T. Adachi, Y. Fujita, H. Fujita, M. Dozono, T. Wakasa

    86 ( 6 )   2012.12

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    DOI: 10.1103/physrevc.86.065805

  • Level structure of S-30 and its importance in the Si-26(alpha,p)P-29 and P-29(p,gamma)S-30 reaction rates Reviewed

    Almaraz-Calderon S, Tan W. P, Aprahamian A, Beard M, Berg G. P. A, Bucher B, Couder M, Goerres J, O'Brien S, Patel D, Roberts A, Sault K, Wiescher M, Brune C. R, Massey T. N, Fujita K, Hatanaka K, Ishiwaka D, Matsubara H, Okamura H, Ong H. J, Sakemi Y, Shimizu Y, Suzuki T, Tameshige Y, Tamii A, Zenihiro J, Kubo T, Namiki Y, Ohkuma Y, Shimbara Y, Suzuki S, Watanabe R, Yamada R, Adachi T, Fujita Y, Fujita H, Dozono M, Wakasa T

    PHYSICAL REVIEW C   86 ( 6 )   2012.12

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    Level structure of S-30 and its importance in the Si-26(alpha,p)P-29 and P-29(p,gamma)S-30 reaction rates

    DOI: 10.1103/PhysRevC.86.065805

  • Gamow-Teller transition strengths in the intermediate nucleus of the 116Cd double-β decay by the 116Cd(p, n)116In and 116Sn(p, n)116In reactions at 300 MeV Reviewed International journal

    85   061301   2012.6

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    The double-differential cross sections for the 116Cd(p,n) and 116Sn(n,p) reactions were measured at 300 MeV for studying the nuclear matrix element of the 116Cd ββ decay. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) component. The integrated GT strengths up to an excitation energy of 30 MeV in the intermediate nucleus 116In are 40 ± 6 and 11 ± 1 in the (p,n) and (n,p) spectra, respectively, including the component from the isovector spin monopole (IVSM). The spectra are compared with those obtained from a theoretical calculation with a quasiparticle random phase approximation, where the contribution from the IVSM component as well as the interference effect between the GT and IVSM components are fully taken into account.

  • Gamow-Teller transition strengths in the intermediate nucleus of the 116Cd double-β decay by the 116Cd(p,n)116In and 116Sn(n,p)116In reactions at 300 MeV

    85 ( 6 )   2012.6

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    The double-differential cross sections for the 116Cd(p,n) and 116Sn(n,p) reactions were measured at 300 MeV for studying the nuclear matrix element of the 116Cd ββ decay. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) component. The integrated GT strengths up to an excitation energy of 30 MeV in the intermediate nucleus 116In are 40±6 and 11±1 in the (p,n) and (n,p) spectra, respectively, including the component from the isovector spin monopole (IVSM). The spectra are compared with those obtained from a theoretical calculation with a quasiparticle random phase approximation, where the contribution from the IVSM component as well as the interference effect between the GT and IVSM components are fully taken into account. © 2012 American Physical Society.

    DOI: 10.1103/PhysRevC.85.061301

  • Gamow-Teller transition strengths in the intermediate nucleus of the 116Cd double-β decay by the 116Cd(p,n)116In and 116Sn(n,p)116In reactions at 300 MeV Reviewed

    85 ( 6 )   2012.6

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    The double-differential cross sections for the 116Cd(p,n) and 116Sn(n,p) reactions were measured at 300 MeV for studying the nuclear matrix element of the 116Cd ββ decay. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) component. The integrated GT strengths up to an excitation energy of 30 MeV in the intermediate nucleus 116In are 40±6 and 11±1 in the (p,n) and (n,p) spectra, respectively, including the component from the isovector spin monopole (IVSM). The spectra are compared with those obtained from a theoretical calculation with a quasiparticle random phase approximation, where the contribution from the IVSM component as well as the interference effect between the GT and IVSM components are fully taken into account.

    DOI: 10.1103/PhysRevC.85.061301

  • Complete sets of polarization transfer observables for the 208Pb(p,n) reaction at 296 MeV and Gamow-Teller and spin-dipole strengths for 208Pb Reviewed

    T. Wakasa, M. Okamoto, M. Dozono, K. Hatanaka, M. Ichimura, S. Kuroita, Y. Maeda, H. Miyasako, T. Noro, T. Saito, Y. Sakemi, T. Yabe, K. Yako

    Physical Review C - Nuclear Physics   85 ( 6 )   2012.6

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    DOI: 10.1103/PhysRevC.85.064606

  • High-precision 28Si( p, t)26Si reaction to determine 22Mg(α, p)25Al reaction rates Reviewed International journal

    84   2011.8

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  • High-precision 28Si(p,t)26Si reaction to determine 22Mg(α,p)25Al reaction rates Reviewed

    A. Matic, A. M. Van Den Berg, M. N. Harakeh, H. J. Wörtche, M. Beard, G. P.A. Berg, J. Görres, P. Leblanc, S. O'Brien, M. Wiescher, K. Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, T. Adachi, Y. Fujita, Y. Shimbara, H. Fujita, T. Wakasa, J. P. Greene, R. Crowter, H. Schatz

    84 ( 2 )   2011.8

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    The rise time of stellar x-ray bursts is a signature of thermonuclear runaway processes in the atmosphere of neutron stars and is highly sensitive to a series of (α,p) reactions via high-lying resonances in sd-shell nuclei. Lacking data for the relevant resonance levels, the stellar reaction rates have been calculated using statistical, Hauser-Feshbach models, assuming a high-level density. This assumption may not be correct in view of the selectivity of the (α,p) reaction to natural parity states. We measured the 28Si(p,t)26Si reaction with a high-resolution spectrometer to identify resonance levels in 26Si above the α-emission threshold at 9.164 MeV excitation energy. These resonance levels are used to calculate the stellar reaction rate of the 22Mg(α,p)25Al reaction and to test the validity of the statistical assumption.

    DOI: 10.1103/PhysRevC.84.025801

  • Discrepancy of Cross Sections in pd Breakup Reactions at Ep = 250 MeV Reviewed International journal

    S.Kuroita, K.Sagara, Y.Eguchi, K.Yashima, T.Shishido, T.Yabe, M.Dozono, Y.Yamada, T.Wakasa, T.Noro, H.Matsubara, J.Zenihiro, A.Tamii, H.Okamura, K.Hatanaka, T.Saito, Y.Maeda, H.Kamada, Y.Tameshige

    Few-Body Systems   50   2011.7

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    Discrepancy of Cross Sections in pd Breakup Reactions at Ep = 250 MeV

  • Complete set of polarization transfer observables for the 16O (p-,n)16F reaction at 296 MeV and 0 degrees Reviewed

    T. Wakasa, M. Okamoto, M. Takaki, M. Dozono, K. Hatanaka, M. Ichimura, T. Noro, H. Okamura, Y. Sakemi

    Physical Review C - Nuclear Physics   84 ( 1 )   2011.7

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    DOI: 10.1103/PhysRevC.84.014614

  • Complete set of polarization transfer observables for the 16O( p, n)16F reaction at 296 MeV and 0 degrees Reviewed International journal

    T.Wakasa, M.Okamoto, M.Takaki, M.Dozono, K.Hatanaka, M.Ichimura, T.Noro, H.Okamura, Y.Sakemi

    Physical Review C   84   2011.7

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  • Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering Reviewed International journal

    K.Sekiguchi, H.Okamura, N.Sakamoto, H.Suzuki, M.Dozono, Y.Maeda, T.Saito, S.Sakaguchi, H.Sakai, M.Sasano, Y.Shimizu, T.Wakasa, K.Yako, H.Witala, W.Glockle, J.Golak, H.Kamada, A.Nogga

    Physical Review C   83   2011.6

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    Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering

  • Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering Reviewed

    Physical Review C - Nuclear Physics   83 ( 6 )   2011.6

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    DOI: 10.1103/PhysRevC.83.061001

  • Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering Reviewed

    Physical Review C - Nuclear Physics   83 ( 6 )   2011.6

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    DOI: 10.1103/PhysRevC.83.061001

  • Discrepancy of Cross Sections in pd Breakup Reactions at Ep = 250 MeV Reviewed

    S. Kuroita, K. Sagara, Y. Eguchi, K. Yashima, T. Shishido, T. Yabe, M. Dozono, Y. Yamada, T. Wakasa, T. Noro, H. Matsubara, J. Zenihiro, A. Tamii, H. Okamura, K. Hatanaka, T. Saito, Y. Maeda, H. Kamada, Y. Tameshige

    Few-Body Systems   50 ( 1-4 )   287 - 289   2011.5

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    DOI: 10.1007/s00601-011-0219-8

  • Discrepancy of Cross Sections in pd Breakup Reactions at E-p=250 MeV Reviewed

    S. Kuroita, K. Sagara, Y. Eguchi, K. Yashima, T. Shishido, T. Yabe, M. Dozono, Y. Yamada, T. Wakasa, T. Noro, H. Matsubara, J. Zenihiro, A. Tamii, H. Okamura, K. Hatanaka, T. Saito, Y. Maeda, H. Kamada, Y. Tameshige

    FEW-BODY SYSTEMS   50 ( 1-4 )   287 - 289   2011.5

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    DOI: 10.1007/s00601-011-0219-8

  • Complete set of deuteron analyzing powers for deuteron-proton elastic scattering at 250 MeV/nucleon and three-nucleon forces Reviewed

    K. Sekiguchi, H. Okamura, N. Sakamoto, H. Suzuki, M. Dozono, Y. Maeda, T. Saito, Satoshi Sakaguchi, H. Sakai, M. Sasano, Y. Shimizu, Tomotsugu Wakasa, K. Yako

    International Nuclear Physics Conference 2010, INPC2010 Journal of Physics: Conference Series   312 ( SECTION 8 )   2011.1

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    DOI: 10.1088/1742-6596/312/8/082038

  • Study of spin-dipole strengths in 16F via complete polarization transfer measurements Reviewed

    Masanori Dozono, Tomotsugu Wakasa, Midori Okamoto, Motonobu Takaki, Kichiji Hatanaka, Yasuhiro Sakemi

    Journal of Physics: Conference Series   295 ( 1 )   2011.1

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    DOI: 10.1088/1742-6596/295/1/012122

  • Search for a permanent EDM using laser cooled radioactive atom Reviewed

    Y. Sakemi, K. Harada, T. Hayamizu, M. Itoh, H. Kawamura, S. Liu, H. S. Nataraj, A. Oikawa, M. Saito, T. Sato, H. P. Yoshida, T. Aoki, A. Hatakeyama, T. Murakami, K. Imai, K. Hatanaka, T. Wakasa, Y. Shimizu, M. Uchida

    Journal of Physics: Conference Series   302 ( 1 )   2011.1

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    DOI: 10.1088/1742-6596/302/1/012051

  • Commissioning of FFAG accelerator at Kyushu university

    Tatsuya Fujinaka, Yujiro Yonemura, Hidehiko Arima, Kunihiro Fujita, Tadahiko Hasuo, Nobuo Ikeda, Kenji Ishibashi, Tadashi Korenaga, Keisuke Maehata, Takashi Matsunaga, Shunsuke Mochizuki, Tsuneyasu Morikawa, Tetsuo Noro, Nobuhiro Shigyo, Hidenobu Takase, Yusuke Uozumi, Genichiro Wakabayashi, Tomotsugu Wakasa, Hisayoshi Nakayama, Akira Takagi, Takio Tomimasu, Yoshiharu Mori

    1st International Particle Accelerator Conference, IPAC 2010 IPAC 2010 - 1st International Particle Accelerator Conference   543 - 545   2010.12

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  • High-precision (p,t) reactions to determine reaction rates in the stellar rp-process

    10th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG10 10th International Symposium on Origin of Matter and Evolution of Galaxies, OMEG10   460 - 462   2010.9

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    DOI: 10.1063/1.3485201

  • High-precision ($p$,$t$) reaction to determine $^{25}{\rm Al}$($p,\gamma{}$)$^{26}{\rm Si}$ reaction rates Reviewed International journal

    A. Matic, A.M. van den Berg, M.N. Harakeh, H.J. W\"ortche, G.P.A. Berg, M. Couder, J. G\"orres, P. LeBlanc, S. O'Brien, M. Wiescher, K. Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, T. Adachi, Y. Fujita, Y. Shimbara, H. Fujita, T. Wakasa, B.A. Brown, and H. Schatz

    Physical Review C   82   2010.8

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    High-precision ($p$,$t$) reaction to determine $^{25}{
    m Al}$($p,\gamma{}$)$^{26}{
    m Si}$ reaction rates

  • High-precision (p,t) reaction to determine Al25(p,γ)Si26 reaction rates Reviewed

    A. Matic, A. M. Van Den Berg, M. N. Harakeh, H. J. Wörtche, G. P.A. Berg, M. Couder, J. Görres, P. Leblanc, S. O'Brien, M. Wiescher, K. Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, T. Adachi, Y. Fujita, Y. Shimbara, H. Fujita, T. Wakasa, B. A. Brown, H. Schatz

    82 ( 2 )   2010.8

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    Since the identification of ongoing Al26 production in the universe, the reaction sequence Mg24(p,γ)Al25(β+ν)Mg25(p,γ)Al26 has been studied intensively. At temperatures where the radiative capture on Al25 (t1/2=7.2 s) becomes faster than the β+ decay, the production of Al26 can be reduced due to the depletion of Al25. To determine the resonances relevant for the Al25(p,γ)Si26 bypass reaction, we measured the Si28(p,t)Si26 reaction with high-energy precision using the Grand Raiden spectrometer at the Research Center for Nuclear Physics, Osaka. Several new energy levels were found above the p threshold and for known states excitation energies were determined with smaller uncertainties. The calculated stellar rates of the bypass reaction agree well with previous results, suggesting that these rates are well established.

    DOI: 10.1103/PhysRevC.82.025807

  • Isospin symmetry of Tz = ±3/2 → ±1/2 gamow-teller transitions in A = 37 and A = 41 nuclei Reviewed

    25 ( 21-23 )   1976 - 1979   2010.7

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    Under the assumption of good isospin symmetry, Tz = ±3/2 → ±1/2 Gamow-Teller (GT) transitions in a mass A isobar are analogous, where Tz is the z component of isospin T defined by 1/2(N - Z). We studied the Tz = +3/2 → +1/2 GT transitions by using the 37Cl(3He,t)37Ar and 41K( 3He,t)41Ca reactions at Ebeam = 140 MeV/nucleon. The GT transition strengths in 37Ar and 41Ca were obtained up to the excitation energy (Ex) of 14.2 MeV and 10.4 MeV with energy resolutions of 30 and 35 keV, respectively. The obtained GT strengths were compared with those of the Tz = -2/3 → -1/2 mirror transitions, measured by the β-decay of 37Ca and 41Ti, respectively. It was found that the overall distributions of the mirror transitions were similar in both A = 37 and A = 41 systems. In A = 37 the differences seen at lower excitation energies are suggested to be the effect of the tensor interaction in the charge-exchange reaction. The differences seen at higher excitation energies are suggested to be the effect of the Coulomb interaction that can break the mirror symmetry of the strength distributions.

    DOI: 10.1142/S0217732310000782

  • ISOSPIN SYMMETRY OF T-z = +/- 3/2 -> +/- 1/2 GAMOW-TELLER TRANSITIONS IN A=37 AND A=41 NUCLEI Reviewed

    Y. Shimbara, Y. Fujita, T. Adachi, G. P. A. Berg, B. A. Brown, H. Fujimura, H. Fujita, K. Fujita, K. Hara, K. Y. Hara, K. Hatanaka, J. Kamiya, K. Katori, T. Kawabata, K. Nakanishi, N. Sakamoto, Y. Sakemi, Y. Shimizu, T. Tameshige, M. Uchida, T. Wakasa, M. Yoshifuku, M. Yosoi, R. G. T. Zegers

    MODERN PHYSICS LETTERS A   25 ( 21-23 )   1976 - 1979   2010.7

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    DOI: 10.1142/S0217732310000782

  • Spectroscopic factors and strength distributions for the deeply bound orbitals in ${}^{40}{\rm Ca}$ obtained from the $(\vec{p},2p)$ reaction at 392 MeV Reviewed International journal

    Y. Yasuda, H. Sakaguchi, S. Asaji, K. Fujita, Y. Hagihara,K. Hatanaka, T. Ishida, M. Itoh, T. Kawabata, S. Kishi, T. Noro, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tameshige, S. Terashima, M. Uchida, T. Wakasa, T. Yonemura, H.P. Yoshida, M. Yosoi, and J. Zenihiro

    Physical Review C   81   2010.4

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    Spectroscopic factors and strength distributions for the deeply bound orbitals in ${}^{40}{
    m Ca}$ obtained from the $(\vec{p},2p)$ reaction at 392 MeV

  • Spectroscopic factors and strength distributions for the deeply bound orbitals in 40Ca obtained from the (p,2p) reaction at 392 MeV Reviewed

    Y. Yasuda, H. Sakaguchi, S. Asaji, K. Fujita, Y. Hagihara, K. Hatanaka, T. Ishida, M. Itoh, T. Kawabata, S. Kishi, T. Noro, Y. Shimizu, H. Takeda, Y. Tameshige, S. Terashima, M. Uchida, T. Wakasa, T. Yonemura, H.P. Yoshida, M.Yosoi, J. Zenihiro

    Physical Review C   81 ( 4 )   044315(1) - 044315(11)   2010.4

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    Spectroscopic factors and strength distributions for the deeply bound orbitals in 40Ca obtained from the (p,2p) reaction at 392 MeV

    DOI: 10.1103/PhysRevC.81.044315

  • Study of breakup mechanism of a loosely bound projectile in a region of Coulomb-breakup dominance Reviewed

    H. Okamura, K. Hatanaka, T. Ikeda, K. Itoh, H. Kumasaka, Y. Maeda, T. Saito, H. Sakai, K. Sekiguchi, K. Suda, R. Suzuki, T. Uesaka, T. Wakasa, K. Yako

    19th International IUPAP Conference on Few-Body Problems in Physics, Few-Body 2009 EPJ Web of Conferences   3   2010.4

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    DOI: 10.1051/epjconf/20100306010

  • Spectroscopic factors and strength distributions for the deeply bound orbitals in Ca40 obtained from the (p□,2p) reaction at 392MeV Reviewed

    81 ( 4 )   2010.4

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    The cross sections and analyzing powers for the Ca40(p□,2p) reaction were measured. The strength distributions for the deep-hole states were obtained by a multipole decomposition analysis. The centroid energies and widths of the hole-state strengths of the 1p and 1s1/2 orbitals in Ca40 were determined. The spectroscopic factors for the deeply bound 1p and 1s1/2 orbitals were extracted as 49±10% and 78±14% of the sum-rule limits of the independent-particle shell model, respectively. A strong influence of the nucleon-nucleon correlations on the spectroscopic factors is suggested.

    DOI: 10.1103/PhysRevC.81.044315

  • Measurement of 2H (p, pp)n cross sections at Ep = 250 MeV Reviewed

    S. Kuroita, K. Sagara, Y. Eguchi, K. Yashima, T. Yabe, T. Shishido, M. Dozono, Y. Yamada, T. Wakasa, T. Noro, H. Matsubara, J. Zenihiro, A. Tamii, H. Okamura, K. Hatanaka, T. Saito, Y. Maeda, H. Kamada, Y. Tameshige

    19th International IUPAP Conference on Few-Body Problems in Physics, Few-Body 2009 EPJ Web of Conferences   3   2010.4

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    DOI: 10.1051/epjconf/20100305022

  • Complete set of deuteron analyzing powers for dp elastic scattering at 250 MeV/nucleon and three nucleon forces Reviewed

    K. Sekiguchi, N. Sakamoto, M. Sasano, S. Sakaguchi, H. Okamura, H. Suzuki, H. Sakai, K. Yako, Y. Shimizu, Y. Maeda, T. Saito, T. Wakasa, M. Dozono

    19th International IUPAP Conference on Few-Body Problems in Physics, Few-Body 2009 EPJ Web of Conferences   3   2010.4

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    DOI: 10.1051/epjconf/20100305024

  • Measurements of the 116Cd(p,n) and 116Sn(n,p) reactions at 300 MeV for studying Gamow-Teller transition strengths in the intermediate nucleus of the 116Cd double-β decay

    102 - 106   2009.12

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    The double differential cross sections for the 116Cd(p,n) and 116Sn(n,p) reactions at 300 MeV have been measured over a wide excitation-energy region including Gamow-Teller (GT) giant resonance (GTGR) for studying GT transition strengths in the intermediate nucleus of the 116Cd double-β decay, namely 116In. A large amount of the strengths in the β+ direction has been newly found in the energy region up to 30 MeV, which may imply that the GT strengths in the GTGR region contribute to the nuclear matrix element of the two-neutrino double-β decay.

    DOI: 10.1063/1.3266084

  • High-precision (p,t) reaction measurement to determine 18Ne(alpha,p)21Na reaction rates Reviewed International journal

    A. Matic, A.M.van den Berg, M.N. Harakeh, H.J. Wortche, G.P.A. Berg, M. Couder, J.L. Fisker, J. Gorres, P. LeBlanc, S. O'Brien, M. Wiescher, K. Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, T. Adachi, Y. Fujita, Y. Shimbara, H. Fujita, T. Wakasa, P.O. Hess, B.A. Brown, and H. Schatz

    Physical Review C   80   2009.11

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    High-precision (p,t) reaction measurement to determine 18Ne(alpha,p)21Na reaction rates

  • High-precision (p,t) reaction measurement to determine Ne18(α,p)Na21 reaction rates Reviewed

    A. Matic, A. M. Van Der Berg, M. N. Harakeh, H. J. Wörtche, G. P.A. Berg, M. Couder, J. L. Fisker, J. Görres, P. Leblanc, S. O'Brien, M. Wiescher, K. Fujita, K. Hatanaka, Y. Sakemi, Y. Shimizu, Y. Tameshige, A. Tamii, M. Yosoi, T. Adachi, Y. Fujita, Y. Shimbara, H. Fujita, T. Wakasa, P. O. Hess, B. A. Brown, H. Schatz

    80 ( 5 )   2009.11

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    x-ray bursts are identified as thermonuclear explosions in the outer atmosphere of accreting neutron stars. The thermonuclear runaway is fueled by the αp process that describes a sequence of (α,p) reactions triggered by the Ne18(α,p)Na21 breakout reaction from the hot CNO cycles. We studied the level structure of the compound nucleus Mg22 by measuring the Mg24(p,t)Mg22 reaction at the Grand Raiden spectrometer at Research Center for Nuclear Physics, Osaka. A large number of α-unbound states was identified and precise excitation energies were determined. Based on shell model and α-cluster model calculations we predict the level parameters for determining the stellar reaction rate of Ne18(α,p)Na21 for a wide temperature range. x-ray burst simulations have been performed to study the impact of the reaction on the x-ray burst luminosity.

    DOI: 10.1103/PhysRevC.80.055804

  • Development of GEM tracking detector for intermediate-energy nuclear experiments Reviewed

    Kunihiro Fujita, Y. Sakemi, M. Dozono, K. Hatanaka, M. Nomachi, T. Sawada, Tomotsugu Wakasa

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   608 ( 1 )   48 - 54   2009.9

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    DOI: 10.1016/j.nima.2009.06.051

  • Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements Reviewed

    103 ( 1 )   2009.8

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    The double-differential cross sections for the Ca48(p,n) and Ti48(n,p) reactions were measured at 300MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) components. The integrated GT strengths up to an excitation energy of 30MeV in Sc48 are 15.3±2.2 and 2.8±0.3 in the (p,n) and (n,p) spectra, respectively. In the (n,p) spectra additional GT strengths were found above 8MeV where shell models within the fp shell-model space predict almost no GT strengths, suggesting that the present shell-model description of the nuclear matrix element of the two-neutrino double-β decay is incomplete.

    DOI: 10.1103/PhysRevLett.103.012503

  • Gamow-teller strength distributions in Sc48 by the Ca48(p,n) and Ti48(n,p) reactions and two-neutrino double-β decay nuclear matrix elements

    103 ( 1 )   2009.8

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    The double-differential cross sections for the Ca48(p,n) and Ti48(n,p) reactions were measured at 300MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) components. The integrated GT strengths up to an excitation energy of 30MeV in Sc48 are 15.3±2.2 and 2.8±0.3 in the (p,n) and (n,p) spectra, respectively. In the (n,p) spectra additional GT strengths were found above 8MeV where shell models within the fp shell-model space predict almost no GT strengths, suggesting that the present shell-model description of the nuclear matrix element of the two-neutrino double-β decay is incomplete. © 2009 The American Physical Society.

    DOI: 10.1103/PhysRevLett.103.012503

  • Study of12C(p→, N→)12N(g.s.; 1+) at 296 MeV and nuclear correlation effects

    695 - 698   2009.8

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    We present measurements of the cross section and a complete set of polarization observables for the Gamow-Teller12C(p→, n→)12N(g.s.; 1+) reaction at an incident proton energy of 296 MeV. The complete set of polarization observables is used to separate the cross section into spin-longitudinal and spin-transverse components. From the comparison with the distorted wave impulse approximation calculations employing random phase approximation response functions, we found that our data showed the existence of the pionic and rho-mesonic correlations in nuclei.

    DOI: 10.1063/1.3215739

  • Polarization transfer measurements for C12(p→,n→)N12(g.s.,1+) at 296 MeV and nuclear correlation effects Reviewed

    80 ( 2 )   2009.8

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    Differential cross sections and complete sets of polarization observables are presented for the Gamow-Teller C12(p→,n→)N12(g.s.,1+) reaction at a bombarding energy of 296 MeV with momentum transfers q of 0.1 to 2.2 fm-1. The polarization transfer observables are used to deduce the spin-longitudinal cross section, IDq, and spin-transverse cross sections, IDp and IDn. The data are compared with calculations based on the distorted-wave impulse approximation (DWIA) using shell-model wave functions. Significant differences between the experimental and theoretical results are observed for all three spin-dependent IDi at momentum transfers of q O. 5 -1, suggesting the existence of nuclear correlations beyond the shell model. We also performed DWIA calculations employing random-phase approximation (RPA) response functions and found that the observed discrepancy is partly resolved by the pionic and -mesonic correlation effects.

    DOI: 10.1103/PhysRevC.80.024319

  • Nuclear spin physics via polarization measurements

    Tomotsugu Wakasa

    18th International Spin Physics Symposium 2008 Spin Physics 18th International Spin Physics Symposium   1149   190 - 199   2009.8

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    DOI: 10.1063/1.3215628

  • Gamow-Teller Strength Distributions in 48Sc by the 48Ca(p,n) and 48Ti(n,p) Reactions and Two-Neutrino Double-beta Decay Nuclear Matrix Elements Reviewed International journal

    K. Yako, M. Sasano, K. Miki, H. Sakai, M. Dozono, D. Frekers, M.B. Greenfield, K. Hatanaka, E. Ihara, M. Kato, T. Kawabata, H. Kuboki, Y. Maeda, H. Matsubara, K. Muto, S. Noji, H. Okamura, T.H. Okabe, S. Sakaguchi, Y. Sakemi, Y. Sasamoto, K. Sekiguchi, Y. Shimizu, K. Suda, Y. Tameshige, A. Tamii, T. Uesaka, T. Wakasa, and H. Zheng

    Physical Review Letters   103   2009.7

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    Gamow-Teller Strength Distributions in 48Sc by the 48Ca(p,n) and 48Ti(n,p) Reactions and Two-Neutrino Double-beta Decay Nuclear Matrix Elements

  • Three-nucleon force effects in the 1H(d,pp)n reaction at 135 MeV/nucleon Reviewed International journal

    K. Sekiguchi, H. Sakai, H. Witala, W. Glockle, J. Golak, K. Itoh, H. Kamada, T. Kawabata, H. Kuboki, Y. Maeda, A. Nogga, H. Okamura, S. Sakaguchi, N. Sakamoto, Y. Sasamoto, M. Sasano, R. Skibinski, K. Suda, Y. Takahashi, T. Uesaka, T. Wakasa, and K. Yako

    Physical Review C   79   2009.5

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    Three-nucleon force effects in the 1H(d,pp)n reaction at 135 MeV/nucleon

  • Three-nucleon force effects in the H1(d→,p→p)n reaction at 135 MeV/nucleon

    K. Sekiguchi, H. Sakai, H. Witała, W. Glöckle, J. Golak, K. Itoh, H. Kamada, T. Kawabata, H. Kuboki, Y. Maeda, A. Nogga, H. Okamura, S. Sakaguchi, N. Sakamoto, Y. Sasamoto, M. Sasano, R. Skibiński, K. Suda, Y. Takahashi, T. Uesaka, T. Wakasa, K. Yako

    79 ( 5 )   54008 - 1-054008-15   2009.5

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    The deuteron to proton polarization transfer coefficients Kyyy&#039; and Kyy&#039; together with the deuteron analyzing powers are measured in three coplanar configurations of the deuteron-proton breakup reaction with a 135-MeV/nucleon polarized deuteron beam at the RIKEN Accelerator Research Facility. The data are compared with theoretical predictions based on exact solutions of the three-nucleon (3N) Faddeev equations with high-precision nucleon-nucleon (NN) forces, alone or combined with two 3N force (3NF) models, the 2π-exchange Tucson-Melbourne&#039;(99) (TM&#039;99) and Urbana IX. Large 3NF effects have been found for all the measured observables. Predicted effects are supported by the data, with the exception of the vector analyzing power Ayd. For this observable, theory based on only NN forces is sufficient to explain the data. The behavior of the breakup analyzing powers is found to be different from the corresponding observables in elastic nucleon-deuteron scattering. © 2009 The American Physical Society.

    DOI: 10.1103/PhysRevC.79.054008

  • Three-nucleon force effects in the H-1(d,pp)n reaction at 135 MeV/nucleon Reviewed

    Sekiguchi K, Sakai H, Witala H, Gloeckle W, Golak J, Itoh K, Kamada H, Kawabata T, Kuboki H, Maeda Y, Nogga A, Okamura H, Sakaguchi S, Sakamoto N, Sasamoto Y, Sasano M, Skibinski R, Suda K, Takahashi Y, Uesaka T, Wakasa T, Yako K

    PHYSICAL REVIEW C   79 ( 5 )   54008 - 1-054008-15   2009.5

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    Three-nucleon force effects in the H-1(d,pp)n reaction at 135 MeV/nucleon

    DOI: 10.1103/PhysRevC.79.054008

  • Three-nucleon force effects in the H1(d→,p→p)n reaction at 135 MeV/nucleon Reviewed

    K. Sekiguchi, H. Sakai, H. Witała, W. Glöckle, J. Golak, K. Itoh, H. Kamada, T. Kawabata, H. Kuboki, Y. Maeda, A. Nogga, H. Okamura, S. Sakaguchi, N. Sakamoto, Y. Sasamoto, M. Sasano, R. Skibiński, K. Suda, Y. Takahashi, T. Uesaka, T. Wakasa, K. Yako

    79 ( 5 )   2009.5

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    The deuteron to proton polarization transfer coefficients Kyyy' and Kyy' together with the deuteron analyzing powers are measured in three coplanar configurations of the deuteron-proton breakup reaction with a 135-MeV/nucleon polarized deuteron beam at the RIKEN Accelerator Research Facility. The data are compared with theoretical predictions based on exact solutions of the three-nucleon (3N) Faddeev equations with high-precision nucleon-nucleon (NN) forces, alone or combined with two 3N force (3NF) models, the 2π-exchange Tucson-Melbourne'(99) (TM'99) and Urbana IX. Large 3NF effects have been found for all the measured observables. Predicted effects are supported by the data, with the exception of the vector analyzing power Ayd. For this observable, theory based on only NN forces is sufficient to explain the data. The behavior of the breakup analyzing powers is found to be different from the corresponding observables in elastic nucleon-deuteron scattering.

    DOI: 10.1103/PhysRevC.79.054008

  • Development of GEM tracking detector for intermediate-energy nuclear experiments Reviewed International journal

    K. Fujita, Y. Sakemi, M. Dozono, K. Hatanaka, M. Nomachi, T. Sawada, and T. Wakasa

    Nucl. Instrum. Methods Phys. Res. A   608   2009.4

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    Development of GEM tracking detector for intermediate-energy nuclear experiments

  • STUDY FOR THREE-NUCLEON FORCE BY pd BREAKUP REACTIONS Reviewed

    Sho Kuroita, K. Sagara, T. Sueta, H. Shimoda, Y. Eguchi, K. Yashima, Y. Maeda, Y. Yamada, T. Wakasa, T. Noro, Y. Tameshige, A. Tamii, K. Hatanaka

    MODERN PHYSICS LETTERS A   24 ( 11-13 )   823 - 826   2009.4

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  • MEASUREMENT AND RE-ANALYSIS OF TENSOR ANALYZING POWER OF pd RADIATIVE CAPTURE AT RCNP Reviewed

    Kenshi Sagara, Y. Tameshige, K. Hatanaka, S. Kuroita, H. Matsubara, K. Fujita, Y. Shimizu, T. Kawabata, Y. Maeda, Y. Sakemi, H. Okamura, K. Sekiguchi, A. Tamii, T. Wakasa

    MODERN PHYSICS LETTERS A   24 ( 11-13 )   831 - 834   2009.4

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    DOI: 10.1142/S0217732309000103

  • Study for three-nucleon force by pd breakup reactions Reviewed

    Sho Kuroita, K. Sagara, T. Sueta, H. Shimoda, Y. Eguchi, K. Yashima, Y. Maeda, Y. Yamada, T. Wakasa, T. Noro, Y. Tameshige, A. Tamii, K. Hatanaka

    Modern Physics Letters A   24 ( 11-13 )   823 - 826   2009.4

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  • Measurement and re-analysis of tensor analyzing power of pd radiative capture at RCNP Reviewed

    Kenshi Sagara, Y. Tameshige, K. Hatanaka, S. Kuroita, H. Matsubara, Kunihiro Fujita, Y. Shimizu, T. Kawabata, Y. Maeda, Y. Sakemi, H. Okamura, K. Sekiguchi, A. Tamii, Tomotsugu Wakasa

    Modern Physics Letters A   24 ( 11-13 )   831 - 834   2009.4

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  • Exploring the αp-process with Grand Raiden Reviewed

    S. O'Brien, T. Adachi, G. P.A. Berg, M. Couder, M. Dozono, H. Fujita, Y. Fujita, J. Görres, K. Hatanaka, D. Ishikawa, T. Kubo, H. Matsubara, Y. Namiki, Y. Ohkuma, H. Okamura, H. J. Ong, D. Patel, Y. Sakemis, K. Sault, Y. Shimbara, S. Suzuki, T. Suzuki, A. Tamii, T. Wakasa, R. Wantanabe, M. Wiescher, R. Yamada, J. Zenihiro

    1090   288 - 292   2009.4

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    22Mg, 30S, 34Ar and 38Ca have been investigated using (p,t) reactions at RCNP with the intent of identifying energy levels in nuclei that determine the reaction rates along the pathway of the αp-process. These experiments exploit the high resolution and 0° capabilities of the Grand Raiden spectrometer and the WS beamline, which can deliver a fully dispersion matched beam to target. The level information is vital to understanding the nucleosynthesis occurring during explosive hydrogen burning, which, for example, is thought to occur during type I X-ray bursts. In the case of 22Mg, new reaction rate calculations have been performed for the 18Ne(α,p)21Na reaction. The experimental technique will be discussed, and the experimental results will be presented.

    DOI: 10.1063/1.3087029

  • High resolution study of isovector negative parity states in the 16O(3He, t)16F reaction at 140 MeV/nucleon Reviewed International journal

    H.Fujita, G.P.A.Berg, Y.Fujita, J.Rapaport, T.Adachi, N.T.Botha, H.Fujimura, K.Fujita, K.Hara, K.Hatanaka, J.Kamiya, T.Kawabata, K.Nakanishi, R.Neveling, N.Sakamoto, Y.Sakemi, Y.Shimbara, Y.Shimizu, F.D.Smit, M.Uchida, T.Wakasa, M.Yoshifuku, M.Yosoi, R.G.T.Zegers

    Physical Review C   2009.2

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    High resolution study of isovector negative parity states in the 16O(3He, t)16F reaction at 140 MeV/nucleon

  • High resolution study of isovector negative parity states in the O16(He3,t)F16 reaction at 140 MeV/nucleon

    H. Fujita, H. Fujita, H. Fujita, G. P.A. Berg, G. P.A. Berg, Y. Fujita, J. Rapaport, T. Adachi, T. Adachi, N. T. Botha, H. Fujimura, H. Fujimura, K. Fujita, K. Hara, K. Hara, K. Hatanaka, J. Kamiya, J. Kamiya, T. Kawabata, K. Nakanishi, K. Nakanishi, R. Neveling, N. Sakamoto, Y. Sakemi, Y. Sakemi, Y. Shimbara, Y. Shimbara, Y. Shimizu, Y. Shimizu, F. D. Smit, M. Uchida, M. Uchida, T. Wakasa, T. Wakasa, M. Yoshifuku, M. Yosoi, M. Yosoi, R. G.T. Zegers

    Physical Review C - Nuclear Physics   79 ( 2 )   2009.2

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    High resolution study of isovector negative parity states in the O16(He3,t)F16 reaction at 140 MeV/nucleon
    The isovector transitions from the ground state (g.s.) of O16 to the negative parity states in F16, i.e., the Jπ=0- g.s., the 0.193 MeV, 1- state, the 0.424 MeV, 2- state, the 0.721 MeV, 3- state, and the 4- "stretched" state at 6.372 MeV, were studied by using a high resolution O16(He3,t)F16 reaction at 140 MeV/nucleon. With the help of high energy resolution, these states were, for the first time, clearly resolved in a charge exchange reaction at an intermediate energy, which favorably excites spin-flip states. Angular distributions of the reaction cross sections were measured in the laboratory frame from 0° to 14°. Parameters of phenomenological effective interactions were derived so as to reproduce these angular distributions in distorted wave Born approximation (DWBA) calculations. The angular distribution of the 0- state could be reproduced well at θc.m.<10°. The empirical values, however, are larger by a factor of 2-2.5 in the larger angle region, where the contribution of the so-called "condensed pion field" is expected. The high resolution also enabled the decay widths of these states to be measured. © 2009 The American Physical Society.

    DOI: 10.1103/PhysRevC.79.024314

  • Gamow-Teller unit cross sections of the (p,n) reaction at 198 and 297 MeV on medium-heavy nuclei Reviewed

    Sasano M, Sakai H, Yako K, Wakasa T, Asaji S, Fujita K, Fujita Y, Greenfield M. B, Hagihara Y, Hatanaka K, Kawabata T, Kuboki H, Maeda Y, Okamura H, Saito T, Sakemi Y, Sekiguchi K, Shimizu Y, Takahashi Y, Tameshige Y, Tamii A

    PHYSICAL REVIEW C   79 ( 2 )   2009.2

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    Gamow-Teller unit cross sections of the (p,n) reaction at 198 and 297 MeV on medium-heavy nuclei
    Gamow-Teller (GT) unit cross sections, sigma(GT), are obtained at 198 and 297 MeV by measuring the double differential cross sections at 0(degrees) for the (p,n) reaction on Ni-58, Zn-70, Cd-114, Sn-118, and Sn-120. The mass dependence of sigma(GT) and the ratio of sigma(GT) to the Fermi unit cross section, sigma(F), (R-2) are also derived in the mass region of 58 <= A <= 120. The sigma(GT) value for Zr-90 at 297 MeV interpolated using the A-dependence obtained herein agrees with that used in a previous analysis where the GT transition strength over a wide energy region up to the continuum was discussed. However, the deduced Ni-64 sigma(GT) value at 198 MeV is 20&#37; smaller than that obtained from the analysis of a previous (n,p) measurement. The present R-2 values in the mass region heavier than Ca-42 are larger than those in the region up to Ca-42 and increase as a function of A.

    DOI: 10.1103/PhysRevC.79.024602

  • Gamow-Teller unit cross sections of the (p,n) reaction at 198 and 297 MeV on medium-heavy nuclei

    M. Sasano, H. Sakai, K. Yako, T. Wakasa, S. Asaji, K. Fujita, Y. Fujita, M. B. Greenfield, Y. Hagihara, K. Hatanaka, T. Kawabata, H. Kuboki, Y. Maeda, H. Okamura, T. Saito, Y. Sakemi, K. Sekiguchi, Y. Shimizu, Y. Takahashi, Y. Tameshige, A. Tamii

    Physical Review C - Nuclear Physics   79   2009.2

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    Gamow-Teller unit cross sections of the (p,n) reaction at 198 and 297 MeV on medium-heavy nuclei
    Gamow-Teller (GT) unit cross sections, σGT, are obtained at 198 and 297 MeV by measuring the double differential cross sections at 0° for the (p,n) reaction on Ni58, Zn70, Cd114, Sn118, and Sn120. The mass dependence of σGT and the ratio of σGT to the Fermi unit cross section, σF, (R2) are also derived in the mass region of 58≤A≤120. The σGT value for Zr90 at 297 MeV interpolated using the A-dependence obtained herein agrees with that used in a previous analysis where the GT transition strength over a wide energy region up to the continuum was discussed. However, the deduced Ni64σGT value at 198 MeV is 20% smaller than that obtained from the analysis of a previous (n,p) measurement. The present R2 values in the mass region heavier than Ca42 are larger than those in the region up to Ca42 and increase as a function of A. © 2009 The American Physical Society.

    DOI: 10.1103/PhysRevC.79.024602

  • High resolution study of isovector negative parity states in the O16(He3,t)F16 reaction at 140 MeV/nucleon Reviewed

    H. Fujita, G. P.A. Berg, Y. Fujita, J. Rapaport, T. Adachi, N. T. Botha, H. Fujimura, K. Fujita, K. Hara, K. Hatanaka, J. Kamiya, T. Kawabata, K. Nakanishi, R. Neveling, N. Sakamoto, Y. Sakemi, Y. Shimbara, Y. Shimizu, F. D. Smit, M. Uchida, T. Wakasa, M. Yoshifuku, M. Yosoi, R. G.T. Zegers

    Physical Review C - Nuclear Physics   79 ( 2 )   2009.2

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    DOI: 10.1103/PhysRevC.79.024314

  • Gamow-Teller unit cross sections of the (p,n) reaction at 198 and 297 MeV on medium-heavy nuclei Reviewed

    M. Sasano, H. Sakai, K. Yako, Tomotsugu Wakasa, S. Asaji, Kunihiro Fujita, Y. Fujita, M. B. Greenfield, Y. Hagihara, K. Hatanaka, T. Kawabata, H. Kuboki, Y. Maeda, H. Okamura, T. Saito, Y. Sakemi, K. Sekiguchi, Y. Shimizu, Y. Takahashi, Y. Tameshige, A. Tamii

    Physical Review C - Nuclear Physics   79 ( 2 )   2009.2

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    DOI: 10.1103/PhysRevC.79.024602

  • Gamow-Teller unit cross sections of the (p,n) reaction at 198 and 297 MeV on medium-heavy nuclei Reviewed International journal

    M. Sasano, H. Sakai, K. Yako, T. Wakasa, S. Asaji, K. Fujita, Y. Fujita, M.B. Greenfield, Y. Hagihara, K. Hatanaka, T. Kawabata, H. Kuboki, Y. Maeda, H. Okamura, T. Saito, Y. Sakemi, K. Sekiguchi, Y. Shimizu, Y. Takahashi, Y. Tameshige, and A. Tamii

    Physical Review C   79   2009.2

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    Gamow-Teller unit cross sections of the (p,n) reaction at 198 and 297 MeV on medium-heavy nuclei

  • High resolution study of isovector negative parity states in the 16O(3He,t)16F reaction at 140 MeV/nucleon Reviewed International journal

    H. Fujita, G.P.A. Berg, Y. Fujita, J. Rapaport, T. Adachi, N.T. Botha, H. Fujimura, K. Fujita, K. Hara, K. Hatanaka,J. Kamiya, T. Kawabata, K. Nakanishi, R. Neveling, N. Sakamoto, Y. Sakemi, Y. Shimbara, Y. Shimizu, F.D. Smit, M. Uchida, T. Wakasa, M. Yoshifuku, M. Yosoi, and R.G.T. Zegers

    Physical Review C   79   2009.2

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    High resolution study of isovector negative parity states in the 16O(3He,t)16F reaction at 140 MeV/nucleon

  • Gamow-Teller unit cross sections of the (p, n) reaction at 198 and 297 MeV on medium-heavy nuclei Reviewed International journal

    M.Sasano, H.Sakai, K.Yako, T.Wakasa, S.Asaji, K.Fujita, Y.Fujita, M.B.Greenfield, Y.Hagihara, K.Hatanaka, T.Kawabata, H.Kuboki, Y.Maeda, H.Okamura, T.Saito, Y.Sakemi, K.Sekiguchi, Y.Shimizu, Y.Takahashi, Y.Tameshige, A.Tamii

    Physical Review C   2009.2

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    Gamow-Teller unit cross sections of the (p, n) reaction at 198 and 297 MeV on medium-heavy nuclei

  • Measurement of A (zz) of pd radiative capture at E (d)=196 MeV Reviewed

    Y. Tameshige, K. Hatanaka, K. Sagara, M. Dozono, K. Fujita, E. Ihara, T. Kaneda, M. Kato, T. Kawabata, S. Kuroita, Y. Maeda, H. Matsubara, H. Okamura, Y. Sakemi, K. Sekiguchi, Y. Shimizu, T. Sugimoto, A. Tamii, T. Wakasa

    FEW-BODY SYSTEMS   44 ( 1-4 )   179 - 181   2008.12

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    DOI: 10.1007/s00601-008-0285-8

  • Measurements of the inclusive pd breakup cross section at low and intermediate energies Reviewed

    S. Kuroita, K. Sagara, T. Kudoh, T. Sueta, T. Sugimoto, H. Shimoda, Y. Yamada, T. Wakasa, T. Noro, Y. Tameshige, Y. Shimizu, T. Ishida, J. Kamiya, Y. Sakemi, A. Tamii, K. Hatanaka

    FEW-BODY SYSTEMS   44 ( 1-4 )   53 - 56   2008.12

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    DOI: 10.1007/s00601-008-0255-1

  • Measurement of Azz of pd radiative capture at Ed=196MeV Reviewed

    Y. Tameshige, K. Hatanaka, K. Sagara, M. Dozono, K. Fujita, E. Ihara, T. Kaneda, M. Kato, T. Kawabata, S. Kuroita, Y. Maeda, H. Matsubara, H. Okamura, Y. Sakemi, K. Sekiguchi, Y. Shimizu, T. Sugimoto, A. Tamii, T. Wakasa

    Few-Body Systems   44 ( 1-4 )   179 - 181   2008.11

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    DOI: 10.1007/s00601-008-0285-8

  • Measurements of the inclusive pd breakup cross section at low and intermediate energies Reviewed

    S. Kuroita, K. Sagara, T. Kudoh, T. Sueta, T. Sugimoto, H. Shimoda, Y. Yamada, Tomotsugu Wakasa, Tetsuo Noro, Y. Tameshige, Y. Shimizu, T. Ishida, J. Kamiya, Y. Sakemi, A. Tamii, K. Hatanaka

    Few-Body Systems   44 ( 1-4 )   53 - 56   2008.11

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    DOI: 10.1007/s00601-008-0255-1

  • Cross sections and analyzing powers for (p,n) reactions on He3 and He4 at 346 MeV Reviewed

    E. Ihara, T. Wakasa, M. Dozono, K. Hatanaka, T. Imamura, M. Kato, S. Kuroita, H. Matsubara, T. Noro, H. Okamura, K. Sagara, Y. Sakemi, K. Sekiguchi, K. Suda, T. Sueta, Y. Tameshige, A. Tamii, H. Tanabe, Y. Yamada

    Physical Review C - Nuclear Physics   78 ( 2 )   2008.8

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    DOI: 10.1103/PhysRevC.78.024607

  • Cross sections and analyzing powers for (p,n) reactions on He3 and He4 at 346 MeV Reviewed

    E. Ihara, T. Wakasa, M. Dozono, K. Hatanaka, T. Imamura, M. Kato, S. Kuroita, H. Matsubara, T. Noro, H. Okamura, K. Sagara, Y. Sakemi, K. Sekiguchi, K. Suda, T. Sueta, Y. Tameshige, A. Tamii, H. Tanabe, Y. Yamada

    Physical Review C - Nuclear Physics   78 ( 2 )   2008.8

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    DOI: 10.1103/PhysRevC.78.024607

  • The RCNP (n,p) facility Reviewed

    K. Yako, H. Sakai, M. B. Greenfield, K. Hatanaka, M. Hatano, J. Kamiya, Y. Maeda, K. Nagayama, H. Okamura, K. Sekiguchi, Y. Shimizu, K. Suda, A. Tamii, Tomotsugu Wakasa

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   592 ( 1-2 )   88 - 99   2008.7

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    DOI: 10.1016/j.nima.2008.03.014

  • The RCNP (n,p) facility Reviewed

    K. Yako, H. Sakai, M. B. Greenfield, K. Hatanaka, M. Hatano, J. Kamiya, Y. Maeda, K. Nagayama, H. Okamura, K. Sekiguchi, Y. Shimizu, K. Suda, A. Tamii, T. Wakasa

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   592 ( 1-2 )   88 - 99   2008.7

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    DOI: 10.1016/j.nima.2008.03.014

  • Complete set of polarization transfer coefficients for the 3He(p,n) reaction at 346 MeV and 0 degrees Reviewed

    T. Wakasa, E. Ihara, M. Dozono, K. Hatanaka, T. Imamura, M. Kato, S. Kuroita, H. Matsubara, T. Noro, H. Okamura, K. Sagara, Y. Sakemi, K. Sekiguchi, K. Suda, T. Sueta, Y. Tameshige, A. Tamii, H. Tanabe, Y. Yamada

    Physical Review C - Nuclear Physics   77 ( 5 )   2008.5

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    DOI: 10.1103/PhysRevC.77.054611

  • Complete set of polarization transfer coefficients for the 3He(p,n) reaction at 346 MeV and 0 degrees Reviewed

    T. Wakasa, E. Ihara, M. Dozono, K. Hatanaka, T. Imamura, M. Kato, S. Kuroita, H. Matsubara, T. Noro, H. Okamura, K. Sagara, Y. Sakemi, K. Sekiguchi, K. Suda, T. Sueta, Y. Tameshige, A. Tamii, H. Tanabe, Y. Yamada

    Physical Review C - Nuclear Physics   77 ( 5 )   2008.5

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    DOI: 10.1103/PhysRevC.77.054611

  • Measurements of the2H(p→, 2p)n breakup reaction at 250 MeV

    183 - 187   2008.5

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    Recently it was found that, the differential cross sections of elastic Nd scattering below 150 MeV can be well reproduced by incorporating a 3NF in Faddeev calculations based on modern nucleon-nucleon (NN) interactions. On the other hand, the differential cross sections for nd and pd at 250 MeV show large discrepancies between the data and the Faddeev calculations with a 3NF. This indicates the existence of the missing features of the three nucleon force in this energy region. For the next step in the 3NF study, we have measured the vector analyzing power Ay and the differential cross sections for the 2H(p̄, pp)n breakup reaction at 250 MeV. The experiment, was carried out by detecting two protons in the final state with using the double-armed spectrometer Grand Raiden (GR) and the Large Acceptance Spectrometer (LAS) at the Research Center for Nuclear Physics (RCNP). The data was compared with the results of Faddeev calculations with and without a 3NF.

    DOI: 10.1063/1.2932286

  • Measurements of inclusive pd breakup cross sections at low and intermediate energies

    S. Kuroita, K. Sagara, T. Kudoh, T. Sueta, H. Shimoda, T. Sugimoto, Y. Yamada, Tomotsugu Wakasa, Tetsuo Noro, Y. Tameshige, A. Tamii, K. Hatanaka

    International Symposium on New Facets of the Three Nucleon Force - 50 Years of the Fujita-Miyazawa Three Nucleon Force, FM50 NEW FACET OF THREE NUCLEON FORCE - 50 YEARS OF FUJITA MIYAZAWA THREE NUCLEON FORCE (FM50) - Proceedings of the International Symposium   98 - 102   2008.5

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    DOI: 10.1063/1.2932313

  • High Rate Production of Polarized 3He with Meta-Stability Exchange Method Reviewed International journal

    Ema Ihara, Tomotsugu Wakasa, Masanori Dozono, and Yasuhiro Sakemi

    Journal of the Physical Society of Japan   2008.2

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    High Rate Production of Polarized 3He with Meta-Stability Exchange Method

  • High rate production of polarized 3He with meta-stability exchange method Reviewed

    Ema Ihara, Tomotsugu Wakasa, Masanori Dozono, Yasuhiro Sakemi

    journal of the physical society of japan   77 ( 2 )   2008.2

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    DOI: 10.1143/JPSJ.77.025002

  • Complete Set of Polarization Transfer Observables for the 12C( p,n) Reaction at 296 MeV and 0° Reviewed International journal

    2008.1

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  • Study of energy dependence of pion production by proton on copper target near 350 MeV Reviewed

    E. V. Karpechev, A. B. Kurepin, A. I. Reshetin, T. L. Karavicheva, Kunihiro Fujita, K. Hatanaka, J. Kamiya, Y. Sakemi, T. Wakasa, H. P. Yoshida, Y. Shimizu, T. Fukuda, P. K. Saha, K. Tamura, T. Ishida

    Physics of Atomic Nuclei   71 ( 1 )   1 - 8   2008.1

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    DOI: 10.1007/s11450-008-1001-3

  • Complete set of polarization transfer observables for the 12C(p, n) reaction at 296MeV and 0° Reviewed

    77 ( 1 )   2008.1

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    A complete set of polarization transfer observables has been measured for the 12C(p, n) reaction at Tp = 296MeV and θlab = 0°. The measured polarization transfer observables indicate that the spin-dipole resonance at Ex ≃ 7MeV has greater 2- strength than 1- strength, which is consistent with recent experimental and theoretical studies. The total spin transfer Σ(0°) deduced from the polarization transfer observables indicates a predominance of the spin-flip strength in the continuum. The exchange tensor interaction at a large momentum transfer of Q ≃ 3:6 fm-1 is discussed.

    DOI: 10.1143/JPSJ.77.014201

  • Study of nuclear correlation effects via 12C (over(p, →), over(n, →)) 12N (g.s., 1+) at 296 MeV Reviewed

    656 ( 1-3 )   38 - 44   2007.11

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    We report measurements of the cross section and a complete set of polarization observables for the Gamow-Teller 12C (over(p, →), over(n, →)) 12N (g.s., 1+) reaction at a bombarding energy of 296 MeV. The data are compared with distorted wave impulse approximation calculations employing transition form factors normalized to reproduce the observed beta-decay ft value. The cross section is significantly under-predicted by the calculations at momentum transfers q ≳ 0.5   fm-1. The discrepancy is partly resolved by considering the non-locality of the nuclear mean field. However, the calculations still under-predict the cross section at large momentum transfers of q ≃ 1.6   fm-1. We also performed calculations employing random phase approximation response functions and found that the observed enhancement can be attributed in part to pionic correlations in nuclei.

    DOI: 10.1016/j.physletb.2007.10.017

  • Three-body cluster state in 11B Reviewed

    T Kawabata, H Akimune, H Fujita, Y Fujita, M Fujiwara, K Hara, K Hatanaka, M Itoh, Y Kanada-En'yo, S Kishi, K Nakanishi, H Sakaguchi, Y Shimbara, A Tamii, S Terashima, M Uchida, T Wakasa, Y Yasuda, HP Yoshida, M Yosoi

    Nucl.Phys. A   790 ( 1-4 )   290c - 293c   2007.11

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    Three-body cluster state in 11B

    DOI: 10.1016/j.nuclphysa.2007.03.047

  • Spin correlation parameter Cyy of p+He3 elastic backward scattering Reviewed

    Y. Shimizu, K. Hatanaka, Y. Tameshige, T. Adachi, Kunihiro Fujita, H. Matsubara, H. Okamura, A. Tamii, A. P. Kobushkin, T. Kawabata, Y. Sasamoto, K. Suda, T. Uesaka, K. Itoh, Y. Sakemi, T. Wakui, M. Uchida, T. Kudoh, K. Sagara, Tomotsugu Wakasa, H. P. Yoshida, Y. Shimbara, E. A. Strokovsky, S. Ishikawa, M. Tanifuji

    Physical Review C - Nuclear Physics   76 ( 4 )   2007.10

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    DOI: 10.1103/PhysRevC.76.044003

  • Spin correlation parameter Cyy of p+He3 elastic backward scattering

    Y. Shimizu, K. Hatanaka, Y. Tameshige, T. Adachi, K. Fujita, H. Matsubara, H. Okamura, A. Tamii, A. P. Kobushkin, T. Kawabata, Y. Sasamoto, K. Suda, K. Suda, T. Uesaka, K. Itoh, Y. Sakemi, T. Wakui, M. Uchida, T. Kudoh, K. Sagara, T. Wakasa, H. P. Yoshida, Y. Shimbara, E. A. Strokovsky, S. Ishikawa, M. Tanifuji

    Physical Review C - Nuclear Physics   76 ( 4 )   2007.10

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    Spin correlation parameter Cyy of p+He3 elastic backward scattering
    We measured the differential cross section and the spin correlation parameter Cyy of the p→+3He→ elastic backward scattering at 200, 300, and 400 MeV at θ=180° in the center-of-mass frame to study the mechanism of the reaction and to examine the validity of the He3 wave functions based on two different realistic two-body forces. This is the first measurement of the spin correlation parameter Cyy of the p→+3He→ EBS at intermediate energies. The experimental results were compared with few-body calculations, including three reaction mechanisms: two-nucleon-pair exchange, pion exchange, and direct pp scattering. It was found that few-body calculations describe the differential cross-section data reasonably well. The spin correlation parameter Cyy shows clear evidence for the two-nucleon-pair exchange processes in the reaction, demonstrating that the spin observables are helpful for deeper understanding of the reaction mechanism. © 2007 The American Physical Society.

    DOI: 10.1103/PhysRevC.76.044003

  • Measurement of Ay for the pd breakup reaction at 250 MeV

    Y. Maeda, T. Uesaka, T. Kawabata, K. Suda, Y. Sasamoto, Satoshi Sakaguchi, H. Sakai, K. Yako, M. Sasano, S. Noji, K. Hatanaka, A. Tamii, Y. Shimizu, M. Takechi, Y. Tameshige, H. Matsubara, K. Sagara, Tomotsugu Wakasa, M. Dozono, E. Ihara, K. Sekiguchi

    17th International Spin Physics Symposium Proceedings of the 17th International Spin Physics Symposium   781 - 784   2007.9

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    DOI: 10.1063/1.2750894

  • Tensor analyzing powers of pd radiative capture

    17th International Spin Physics Symposium Proceedings of the 17th International Spin Physics Symposium   773 - 776   2007.9

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    DOI: 10.1063/1.2750892

  • Proton induced coherent pion production

    Kunihiro Fujita, Y. Sakemi, S. Asaji, M. Dozono, K. Hatanaka, E. Ihara, T. Kaneda, H. Matsubara, H. Okamura, Y. Shimizu, Y. Tameshige, A. Tamii, Tomotsugu Wakasa

    17th International Spin Physics Symposium Proceedings of the 17th International Spin Physics Symposium   803 - 806   2007.9

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    DOI: 10.1063/1.2750899

  • New candidate for an alpha cluster condensed state in 16O (α, α) at 400 MeV Reviewed

    T. Wakasa, E. Ihara, Kunihiro Fujita, Y. Funaki, K. Hatanaka, H. Horiuchi, M. Itoh, J. Kamiya, G. Röpke, H. Sakaguchi, N. Sakamoto, Y. Sakemi, P. Schuck, Y. Shimizu, M. Takashina, S. Terashima, A. Tohsaki, M. Uchida, H. P. Yoshida, M. Yosoi

    653 ( 2-4 )   173 - 177   2007.9

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    Inelastic α scattering on 16O is studied at 400 MeV using an ice target. Near the 4α breakup threshold of 14.4 MeV, a broad peak is observed at an excitation energy of 13.6 ± 0.1  MeV with a width of 0.6 ± 0.2  MeV. The spin-parity is estimated to be 0+ from the momentum-transfer dependence. The observed width is significantly larger than that of the 0+ state at 12.0 MeV with the α + 12C structure, indicating a well-developed α cluster structure. The magnitude of the cross section is sensitive to the density distribution of the constituent α clusters. The observed cross section is consistent with the theoretical prediction for the α cluster condensed state, characterized by its dilute density distribution with a large root-mean-square radius.

    DOI: 10.1016/j.physletb.2007.08.016

  • Measurement of cross section and various spin observables in the pd elastic scattering at 392 MeV

    A. Tamii, M. Dozono, Kunihiro Fujita, K. Hatanaka, E. Ihara, T. Kaneda, H. Kuboki, Y. Maeda, H. Matsubara, T. Ohta, H. Okamura, H. Sakai, Y. Sakemi, Y. Satou, K. Sekiguchi, K. Suda, M. Takechi, Y. Tameshige, H. Tanabe, N. Uchigashima, T. Uesaka, T. Wakasa, K. Yako

    17th International Spin Physics Symposium Proceedings of the 17th International Spin Physics Symposium   765 - 768   2007.9

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    DOI: 10.1063/1.2750890

  • Differential cross section and analyzing power measurements for n→d elastic scattering at 248 MeV Reviewed

    Y. Maeda, H. Sakai, K. Fujita, M. B. Greenfield, K. Hatanaka, M. Hatano, J. Kamiya, T. Kawabata, H. Kuboki, H. Okamura, J. Rapaport, T. Saito, Y. Sakemi, M. Sasano, K. Sekiguchi, Y. Shimizu, K. Suda, Y. Tameshige, A. Tamii, T. Wakasa, K. Yako, J. Blomgren, P. Mermod, Öhrn A., Österlund M., H. Witała, A. Deltuva, A. C. Fonseca, P. U. Sauer, W. Glöckle, J. Golak, H. Kamada, A. Nogga, R. Skibiński

    76 ( 1 )   2007.7

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    The differential cross sections and vector analyzing powers for nd elastic scattering at En=248 MeV were measured for 10°-180° in the center-of-mass (c.m.) system. To cover the wide angular range, the experiments were performed separately by using two different setups for forward and backward angles. The data are compared with theoretical results based on Faddeev calculations with realistic nucleon-nucleon (NN) forces such as AV18, CD Bonn, and Nijmegen I and II, and their combinations with the three-nucleon forces (3NFs), such as Tucson-Melbourne 99 (TM99), Urbana IX, and the coupled-channel potential with Δ-isobar excitation. Large discrepancies are found between the experimental cross sections and theory with only 2N forces for θc.m.>90°. The inclusion of 3NFs brings the theoretical cross sections closer to the data but only partially explains this discrepancy. For the analyzing power, no significant improvement is found when 3NFs are included. Relativistic corrections are shown to be small for both the cross sections and the analyzing powers at this energy. For the cross sections, these effects are mostly seen in the very backward angles. Compared with the pd cross section data, quite significant differences are observed at all scattering angles that cannot be explained only by the Coulomb interaction, which is usually significant at small angles.

    DOI: 10.1103/PhysRevC.76.014004

  • Differential cross section and analyzing power measurements for (n)over-right-arrowd elastic scattering at 248 MeV Reviewed

    Maeda Y, Sakai H, Fujita K, Greenfield M. B, Hatanaka K, Hatano M, Kamiya J, Kawabata T, Kuboki H, Okamura H, Rapaport J, Saito T, Sakemi Y, Sasano M, Sekiguchi K, Shimizu Y, Suda K, Tameshige Y, Tamii A, Wakasa T, Yako K, Blomgren J, Mermod P, Ohrn A. R, Osterlund M. R, Witala H, Deltuva A, Fonseca A. C, Sauer P. U, Glockle W, Golak J, Kamada H, Nogga A, Skibinski R

    PHYSICAL REVIEW C   76 ( 1 )   14004 - 1-014004-13   2007.7

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    Differential cross section and analyzing power measurements for (n)over-right-arrowd elastic scattering at 248 MeV

    DOI: 10.1103/PhysRevC.76.014004

  • Differential cross section and analyzing power measurements for n→d elastic scattering at 248 MeV

    Y. Maeda, Y. Maeda, H. Sakai, H. Sakai, K. Fujita, M. B. Greenfield, K. Hatanaka, M. Hatano, J. Kamiya, T. Kawabata, H. Kuboki, H. Okamura, J. Rapaport, T. Saito, Y. Sakemi, Y. Sakemi, M. Sasano, K. Sekiguchi, Y. Shimizu, Y. Shimizu, K. Suda, K. Suda, Y. Tameshige, A. Tamii, T. Wakasa, K. Yako, J. Blomgren, P. Mermod, A. Öhrn, M. Österlund, H. Witała, A. Deltuva, A. C. Fonseca, P. U. Sauer, W. Glöckle, J. Golak, H. Kamada, A. Nogga, R. Skibiński

    76 ( 1 )   14004 - 1-014004-13   2007.7

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    The differential cross sections and vector analyzing powers for nd elastic scattering at En=248 MeV were measured for 10°-180° in the center-of-mass (c.m.) system. To cover the wide angular range, the experiments were performed separately by using two different setups for forward and backward angles. The data are compared with theoretical results based on Faddeev calculations with realistic nucleon-nucleon (NN) forces such as AV18, CD Bonn, and Nijmegen I and II, and their combinations with the three-nucleon forces (3NFs), such as Tucson-Melbourne 99 (TM99), Urbana IX, and the coupled-channel potential with Δ-isobar excitation. Large discrepancies are found between the experimental cross sections and theory with only 2N forces for θc.m.>90°. The inclusion of 3NFs brings the theoretical cross sections closer to the data but only partially explains this discrepancy. For the analyzing power, no significant improvement is found when 3NFs are included. Relativistic corrections are shown to be small for both the cross sections and the analyzing powers at this energy. For the cross sections, these effects are mostly seen in the very backward angles. Compared with the pd cross section data, quite significant differences are observed at all scattering angles that cannot be explained only by the Coulomb interaction, which is usually significant at small angles. © 2007 The American Physical Society.

    DOI: 10.1103/PhysRevC.76.014004

  • Measurements of the over(n, →) d scattering at 250 MeV and three-nucleon forces Reviewed

    Y. Maeda, H. Sakai, Kunihiro Fujita, M. Hatano, J. Kamiya, T. Kawabata, H. Kuboki, K. Hatanaka, H. Okamura, T. Saito, Y. Sakemi, M. Sasano, K. Sekiguchi, Y. Shimizu, K. Suda, Y. Tameshige, A. Tamii, Tomotsugu Wakasa, K. Yako, M. B. Greenfield, H. Kamada, H. Witała

    790 ( 1-4 )   430c - 433c   2007.6

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    The differential cross sections and the vector analyzing powers for the nd elastic scattering at En = 250 MeV have been measured for the study of the three-nucleon force (3NF) effects in the Coulomb-free system. To cover a wide angular region, the experiments were performed by using two different methods at the (n, p) facility and at the NTOF facility which constructed at the Research Center for Nuclear Physics (RCNP). The results were compared with theoretical predictions of the Faddeev calculations based on the modern nucleon-nucleon (NN) forces with the three-nucleon force (3NF). The inclusion of 3NFs leads to a good description of the cross section except for the backward angles. The results were also compared with the theoretical predictions with relativistic corrections. The direct data-to-data comparison of the cross sections of the nd and pd was performed.

    DOI: 10.1016/j.nuclphysa.2007.03.138

  • Study of spin parts of three nucleon forces via (d)over-right-arrowp breakup reactions at intermediate energies Reviewed

    Sekiguchi K, Sakai H, Sakamoto N, Kuboki H, Sasano M, Takahashi Y, Yako K, Kawabata T, Maeda Y, Sakaguchi S, Sasamoto Y, Suda K, Uesaka T, Okamura H, Itoh K, Wakasa T

    NUCLEAR PHYSICS A   790   450C - 453C   2007.6

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    Study of spin parts of three nucleon forces via (d)over-right-arrowp breakup reactions at intermediate energies

    DOI: 10.1016/j.nuclphysa.2007.03.174

  • Measurements of the (n)over-right-arrowd scattering at 250 MeV and three-nucleon forces Reviewed

    Maeda Y, Sakai H, Fujita K, Hatano M, Kamiya J, Kawabata T, Kuboki H, Hatanaka K, Okamura H, Saito T, Sakemi Y, Sasano M, Sekiguchi K, Shimizu Y, Suda K, Tameshige Y, Tamii A, Wakasa T, Yako K, Greenfield M. B, Kamada H, Witala H

    NUCLEAR PHYSICS A   790   430C - 433C   2007.6

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    Measurements of the (n)over-right-arrowd scattering at 250 MeV and three-nucleon forces

    DOI: 10.1016/j.nuclphysa.2007.03.138

  • Three-body cluster state in 11B Reviewed

    T. Kawabata, H. Akimune, H. Fujita, Y. Fujita, M. Fujiwara, K. Hara, K. Hatanaka, M. Itoh, Y. Kanada-En'yo, S. Kishi, K. Nakanishi, H. Sakaguchi, Y. Shimbara, A. Tamii, S. Terashima, M. Uchida, Tomotsugu Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Nuclear Physics A   790 ( 1-4 )   290c - 293c   2007.6

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    DOI: 10.1016/j.nuclphysa.2007.03.047

  • Tensor analyzing powers of pd radiative capture at E(d)over-right-arrow=137 MeV

    Y. Tameshige, K. Sagara, T. Kudoh, M. Shiota, S. Shimomoto, T. Wakasa, K. Hatanaka, A. Tamii, Y. Sakemi, Y. Shimizu, H. P. Yoshida, H. Kamada, H. Witala

    NUCLEAR PHYSICS A   790   446C - 449C   2007.6

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    DOI: 10.1016/j.nuclphysa.2007.03.175

  • Study of spin parts of three nucleon forces via over(d, →) p breakup reactions at intermediate energies Reviewed

    790 ( 1-4 )   450c - 453c   2007.6

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    Measurements of deuteron-proton breakup reactions at 135 MeV/A have been made at RIKEN Accelerator Research Facility, focusing on the specific coplanar configurations. The obtained results are compared with the Faddeev calculations based on the modern nucleon-nucleon forces together with the Tucson-Melbourne99, and UrbanaIX three nucleon forces.

    DOI: 10.1016/j.nuclphysa.2007.03.174

  • Determination of the Gamow-Teller transition strength to 116In(g.s.) by the 116Cd(p,n) reaction at 300 MeV for the study of the nuclear matrix element of the two-neutrino double beta decay Reviewed

    Masaki Sasano, Hideyuki Sakai, Kentaro Yako, Hironori Kuboki, Kenjiro Miki, Shumpei Noji, Tomotsugu Wakasa, Masanori Dozono, Kimiko Sekiguchi, Tomohiro Uesaka, Takahiro Kawabata, Yukie Maeda, Satoshi Sakaguchi, Yoshiko Sasamoto, Kenji Suda, Keisuke Itoh, Kichiji Hatanaka, Hiroyuki Okamura, Atsushi Tamii, Kazuo Muto, Dieter Frekers, M. B. Greenfield

    Nuclear Physics A   788 ( 1-4 )   76 - 81   2007.5

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    DOI: 10.1016/j.nuclphysa.2007.01.051

  • Gamow-Teller transitions in pf-shell nuclei studied in (3He, t) reactions Reviewed

    T. Adachi, Y. Fujita, P. von Brentano, G. P.A. Berg, C. Fransen, D. De Frenne, H. Fujita, K. Fujita, K. Hatanaka, M. Honma, E. Jacobs, J. Kamiya, K. Kawase, T. Mizusaki, K. Nakanishi, A. Negret, T. Otsuka, N. Pietralla, L. Popescu, Y. Sakemi, Y. Shimbara, Y. Shimizu, Y. Tameshige, A. Tamii, M. Uchida, T. Wakasa, M. Yosoi, K. O. Zell

    Nuclear Physics A   788 ( 1-4 )   70 - 75   2007.5

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    DOI: 10.1016/j.nuclphysa.2007.01.050

  • Determination of the Gamow-Teller transition strength to In-116(g.s.) by the Cd-116(p,n) reaction at 300 MeV for the study of the nuclear matrix element of the two-neutrino double beta decay Reviewed

    Sasano Masaki, Sakai Hideyuki, Yako Kentaro, Kuboki Hironori, Miki Kenjiro, Noji Shumpei, Wakasa Tomotsugu, Dozono Masanori, Sekiguchi Kimiko, Uesaka Tomohiro, Kawabata Takahiro, Maeda Yukie, Sakaguchi Satoshi, Sasamoto Yoshiko, Suda Kenji, Itoh Keisuke, Hatanaka Kichiji, Okamura Hiroyuki, Tamii Atsushi, Muto Kazuo, Frekers Dieter, Greenfield M. B

    NUCLEAR PHYSICS A   788   76C - 81C   2007.5

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    Determination of the Gamow-Teller transition strength to In-116(g.s.) by the Cd-116(p,n) reaction at 300 MeV for the study of the nuclear matrix element of the two-neutrino double beta decay

    DOI: 10.1016/j.nuclphysa.2007.01.051

  • Gamow-Teller transitions in pf-shell nuclei studied in (3He, t) reactions Reviewed

    T. Adachi, Y. Fujita, P. von Brentano, G. P.A. Berg, C. Fransen, D. De Frenne, H. Fujita, Kunihiro Fujita, K. Hatanaka, M. Honma, E. Jacobs, J. Kamiya, K. Kawase, T. Mizusaki, K. Nakanishi, A. Negret, T. Otsuka, N. Pietralla, L. Popescu, Y. Sakemi, Y. Shimbara, Y. Shimizu, Y. Tameshige, A. Tamii, M. Uchida, T. Wakasa, M. Yosoi, K. O. Zell

    Nuclear Physics A   788 ( 1-4 )   70 - 75   2007.5

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    DOI: 10.1016/j.nuclphysa.2007.01.050

  • Dilute 2 α + t cluster structure in 11B Reviewed

    788 ( 1-4 )   301 - 306   2007.5

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    The cluster structures of the excited states in 11B are studied by analyzing the isoscalar monopole and quadrupole strengths in the 11B(d,d′) reaction at Ed = 200  MeV. The excitation strengths are compared with the predictions by the shell-model and antisymmetrized molecular-dynamics (AMD) calculations. It is found that the large monopole strength for the 3 / 23- state at Ex = 8.56  MeV is well described by the AMD calculation and is an evidence for a developed 2 α + t cluster structure.

    DOI: 10.1016/j.nuclphysa.2007.01.016

  • 2 α + t cluster structure in 11B Reviewed

    646 ( 1 )   6 - 11   2007.3

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    The cluster structures of the excited states in 11B are studied by analyzing the isoscalar monopole and quadrupole strengths in the 11B (d, d) reaction at Ed = 200   MeV. The excitation strengths are compared with the predictions by the shell-model and antisymmetrized molecular-dynamics (AMD) calculations. The large monopole strength for the 3 / 23- state at Ex = 8.56   MeV is well described by the AMD calculation and is suggested to be an evidence for a well developed 2 α + t cluster structure.

    DOI: 10.1016/j.physletb.2006.11.079

  • Absolute calibration of the deuteron beam polarization at intermediate energies via the C-12((d)over-right-arrow, alpha)B-10*[2(+)] reaction Reviewed

    K. Suda, H. Okamura, T. Uesaka, J. Nishikawa, H. Kumasaka, R. Suzuki, H. Sakai, A. Tamii, T. Ohnishi, K. Sekiguchi, K. Yako, S. Sakoda, H. Kato, M. Hatano, Y. Maeda, T. Saito, T. Ishida, N. Sakamoto, Y. Satou, K. Hatanaka, T. Wakasa, J. Kamiya

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   572 ( 2 )   745 - 753   2007.3

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    DOI: 10.1016/j.nima.2006.11.040

  • Absolute calibration of the deuteron beam polarization at intermediate energies via the 12C(over(d, ⇒), α)10B*[2+] reaction Reviewed

    572 ( 2 )   745 - 753   2007.3

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    The 12C(over(d, ⇒), α)10B *[2+] reaction at 0{ring operator} has been proposed as a new tool to calibrate the deuteron beam polarization at intermediate energies. The absolute values of the deuteron polarizations were extracted for the first time by using this reaction at 270 and 140 MeV deuteron energies. The analyzing powers for the over(d, ⇒)-p elastic scattering, which is used as a secondary reaction of a polarimetry, were determined by the new method.

    DOI: 10.1016/j.nima.2006.11.040

  • Development of a HTS magnet and application to a beam scanner Reviewed

    K. Hatanaka, S. Ninomiya, Y. Sakemi, T. Wakasa, T. Kawaguchi, N. Takahashi

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   571 ( 3 )   583 - 587   2007.2

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    DOI: 10.1016/j.nima.2006.10.294

  • Isovector effective NN interaction in Si-28((p)over-right-arrow,(n)over-right-arrow P-28(6(-)) at 198 MeV Reviewed

    T. Wakasa, Y. Hagihara, T. Noro, T. Ishida, S. Asaji, Y. Nagasue, K. Hatanaka, Y. Sademi, A. Tamii, Y. Shimizu, K. Fujita, Y. Tameshige, H. Sakai, H. Kuboki, M. Sasano, M. Ichimura, H. Kamada, M. Yamaguchi

    PHYSICS LETTERS B   645 ( 5-6 )   402 - 407   2007.2

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    DOI: 10.1016/j.physletb.2006.12.069

  • Development of a HTS magnet and application to a beam scanner Reviewed

    K. Hatanaka, S. Ninomiya, Y. Sakemi, T. Wakasa, T. Kawaguchi, N. Takahashi

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   571 ( 3 )   583 - 587   2007.2

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    DOI: 10.1016/j.nima.2006.10.294

  • Isovector effective NN interaction in 28Si (over(p, →), over(n, →)) 28P (6-) at 198 MeV Reviewed

    645 ( 5-6 )   402 - 407   2007.2

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    We report measurements of the cross section and a complete set of polarization observables for the 28Si (over(p, →), over(n, →)) 28P (6-) reaction at a bombarding energy of 198 MeV. The data are compared with distorted wave impulse approximation calculations employing response functions normalized to inelastic electron scattering. The spin-longitudinal polarized cross section I Dq is slightly over-predicted by the calculations, while the normal spin-transverse polarized cross section I Dn is significantly under-predicted. The calculated in-plane spin-transverse I Dp and spin-scalar I D0 polarized cross sections agree well with the experimental data. These results are consistent with those for 28Si (over(p, →), over(p, →)) 28Si (6-, T = 1) scattering at the same energy, and thus it is concluded that isospin-mixing effects are not responsible for the discrepancy between theory and experiment in the (over(p, →), over(p, →)) case. Energy half-off-shell effects as medium effects on the effective nucleon-nucleon interaction are also investigated and found to be too small to be responsible for the discrepancy.

    DOI: 10.1016/j.physletb.2006.12.069

  • Identification of the [2 0 2]3/2 deformed band in mirror nuclei 25Mg and 25Al and implications for unstable nuclei Reviewed

    Y. Fujita, I. Hamamoto, H. Fujita, Y. Shimbara, T. Adachi, G. P.A. Berg, Kunihiro Fujita, K. Hatanaka, J. Kamiya, K. Nakanishi, Y. Sakemi, Y. Shimizu, M. Uchida, T. Wakasa, M. Yosoi

    International Conference on Finite Fermionic Systems: Nilsson Model 50 Years Physica Scripta T   T125   194 - 195   2006.12

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    DOI: 10.1088/0031-8949/2006/T125/047

  • 2α + t cluster state in 11B Reviewed

    21 ( 31-33 )   2383 - 2392   2006.10

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    The cluster structures of the excited states in 11B are studied by analyzing the isoscalar monopole and quadrupole strengths in the 11B(d,d′) reaction at Ed = 200 MeV. The excitation strengths are compared with the predictions by the shell-model and antisymmetrized molecular-dynamics (AMD) calculations. It is found that the large monopole strength for the 3/23- state at E x = 8.56 MeV is well described by the AMD calculation and is an evidence for a developed 2α + t cluster structure.

  • 2 alpha+t cluster state in B-11 Reviewed

    T. Kawabata, H. Akimune, H. Fujita, M. Fujiwara, K. Hara, K. Hatanaka, K. Nakanishi, Y. Shimbara, A. Tamii, H. P. Yoshida, M. Yosoi, Y. Fujita, M. Itch, Y. Kanada-En'yo, S. Kishi, H. Sakaguchi, S. Terashima, Y. Yasuda, M. Uchida, T. Wakasa

    MODERN PHYSICS LETTERS A   21 ( 31-33 )   2383 - 2392   2006.10

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    DOI: 10.1142/S021773230602202X

  • 2α + t cluster state in 11B Reviewed

    49 ( 1 )   210 - 211   2006.10

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    The cluster structures of the excited states in 11B are studied by analyzing the isoscalar monopole and quadrupole strengths in the 11B(d, d′) reaction at Ed 200 MeV. The excitation strengths are compared with the theoretical predictions by the antisymmetrized molecular-dynamics (AMD) calculations. It is found that the large monopole strength for the 3/2-3 state at Ex 8.56 MeV is well described by the AMD wave function with a dilute 2α + tcluster structure.

    DOI: 10.1088/1742-6596/49/1/052

  • Spin-isospin responses via (p,n) and (n,p) reactions Reviewed

    M. Ichimura, H. Sakai, T. Wakasa

    Progress in Particle and Nuclear Physics   56 ( 2 )   446 - 531   2006.4

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    DOI: 10.1016/j.ppnp.2005.09.001

  • Fine structure of the Gamow-Teller resonance in Nb90 and level density of 1+ states Reviewed

    Y. Kalmykov, T. Adachi, G. P.A. Berg, H. Fujita, K. Fujita, Y. Fujita, K. Hatanaka, J. Kamiya, K. Nakanishi, P. Von Neumann-Cosel, V. Yu Ponomarev, A. Richter, N. Sakamoto, Y. Sakemi, A. Shevchenko, Y. Shimbara, Y. Shimizu, F. D. Smit, T. Wakasa, J. Wambach, M. Yosoi

    Physical Review Letters   96 ( 1 )   2006.1

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    DOI: 10.1103/PhysRevLett.96.012502

  • Study of the pionic enhancement in 16O(p,p')16O(0-, T=1) at 295 MeV Reviewed

    T. Wakasa, G.P.A. Berg, H. Fujimura, K. Fujita, K. Hatanaka, M. Ichimura, M. Itoh, J. Kamiya, T. Kawabata, E. Obayashi, H. Sakaguchi, N. Sakamoto, Y. Sakemi, Y. Shimizu, H. Takeda, M. Uchida, Y. Yasuda, H.P. Yoshida, M. Yosoi

    Physics Letters B   632 ( 4 )   485 - 489   2006.1

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    Study of the pionic enhancement in 16O(p,p')16O(0-, T=1) at 295 MeV

  • Study of the pionic enhancement in 16O(p, p′) 16O(0-, T = 1) at 295 MeV Reviewed

    632 ( 4 )   485 - 489   2006.1

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    The cross section of the O16(p,p′)O16(0-,T=1) scattering was measured at a bombarding energy of 295 MeV in the momentum transfer range of 1.0fm-1≤qc.m.≤2.1fm-1. The isovector 0- state at Ex=12.8MeV is clearly separated from its neighboring states owing to the high energy resolution of about 30 keV. The cross section data were compared with distorted wave impulse approximation (DWIA) calculations employing shell-model wave functions. The observed cross sections around qc.m.≃1.7fm-1 are significantly larger than obtained by these calculations, suggesting pionic enhancement as a precursor of pion condensation in nuclei. The data are well reproduced by DWIA calculations using random phase approximation response functions including the Δ isobar that predict pionic enhancement.

    DOI: 10.1016/j.physletb.2005.11.009

  • Search for supernarrow dibaryons via the pd→ppX and pd→pdX reactions Reviewed

    74 ( 3 )   2006.1

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    Supernarrow dibaryons (SNDs) have been searched for by the pd→ppX and pd→pdX reactions at Ep=295 MeV over a mass range of 1898 to 1953 MeV, where three candidates of SNDs were found at the Moscow Meson Factory. The experiment was carried out at the Research Center for Nuclear Physics using a two-arm magnetic spectrometer system and a liquid deuterium target. A good mass resolution of 1 MeV and a low background condition were achieved. No resonance structure was observed in the missing mass spectra. Upper limits of the SND production cross section were determined.

    DOI: 10.1103/PhysRevC.74.035203

  • High-resolution study of Gamow-Teller transitions from the Tz=1 nucleus Ti46 to the Tz=0 nucleus V46 Reviewed

    T. Adachi, Y. Fujita, P. Von Brentano, A. F. Lisetskiy, G. P.A. Berg, C. Fransen, D. De Frenne, H. Fujita, Kunihiro Fujita, K. Hatanaka, M. Honma, E. Jacobs, J. Kamiya, K. Kawase, T. Mizusaki, K. Nakanishi, A. Negret, T. Otsuka, N. Pietralla, L. Popescu, Y. Sakemi, Y. Shimbara, Y. Shimizu, Y. Tameshige, A. Tamii, M. Uchida, T. Wakasa, M. Yosoi, K. O. Zell

    Physical Review C - Nuclear Physics   73 ( 2 )   2006.1

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    DOI: 10.1103/PhysRevC.73.024311

  • Measurements of the response functions of a large size NE213 organic liquid scintillator for neutrons up to 800 MeV Reviewed

    S. Taniguchi, T. Moriya, M. Takada, K. Hatanaka, Tomotsugu Wakasa, T. Saito

    Radiation Protection Dosimetry   116 ( 1-4 )   175 - 179   2005.12

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    DOI: 10.1093/rpd/nci042

  • Measurements of the response functions of a large size NE213 organic liquid scintillator for neutrons up to 800 MeV Reviewed

    S Taniguchi, T Moriya, M Takada, K Hatanaka, T Wakasa, T Saito

    RADIATION PROTECTION DOSIMETRY   116 ( 1-4 )   175 - 179   2005.12

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    DOI: 10.1093/rpd/nci042

  • Unified analysis of spin isospin responses of nuclei Reviewed

    T. Wakasa, M. Ichimura, H. Sakai

    Physical Review C - Nuclear Physics   72 ( 6 )   2005.12

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    DOI: 10.1103/PhysRevC.72.067303

  • Resolving the discrepancy of 135 MeV pd elastic scattering cross sections and relativistic effects Reviewed

    Physical Review Letters   95 ( 16 )   2005.10

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    DOI: 10.1103/PhysRevLett.95.162301

  • Performance of the neutron polarimeter NPOL3 for high resolution measurements Reviewed

    T. Wakasa, Y. Hagihara, M. Sasano, S. Asaji, Kunihiro Fujita, K. Hatanaka, T. Ishida, T. Kawabata, H. Kuboki, Y. Maeda, T. Noro, T. Saito, H. Sakai, Y. Sakemi, K. Sekiguchi, Y. Shimizu, A. Tamii, Y. Tameshige, K. Yako

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   547 ( 2-3 )   569 - 582   2005.8

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    DOI: 10.1016/j.nima.2005.03.151

  • Determination of the Gamow-Teller quenching factor from charge exchange reactions on 90Zr Reviewed

    K. Yako, H. Sakai, M. B. Greenfield, K. Hatanaka, M. Hatano, J. Kamiya, H. Kato, Y. Kitamura, Y. Maeda, C. L. Morris, H. Okamura, J. Rapaport, T. Saito, Y. Sakemi, K. Sekiguchi, Y. Shimizu, K. Suda, A. Tamii, N. Uchigashima, T. Wakasa

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   615 ( 3-4 )   193 - 199   2005.6

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    DOI: 10.1016/j.physletb.2005.04.032

  • New discrepancies in pd capture and pd breakup

    T. Kudoh, K. Sagara, T. Noro, T. Wakasa, T. Yagita, T. Ishida, S. Nozoe, S. Shimomoto, M. Shiota, H. Ohira, M. Tomiyama, K. Hatanaka, Y. Sakemi, A. Tamii, H. P. Yoshida, Y. Shimizu, Kunihiro Fujita, Y. Tameshige, H. Kuboki

    FEW-BODY PROBLEMS IN PHYSICS: The 19th European Conference on Few-Body Problems in Physics FEW-BODY PROBLEMS IN PHYSICS The 19th European Conference on Few-Body Problems in Physics   2005.5

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    DOI: 10.1063/1.1932874

  • Analyzing powers for exclusive 1s1/2 proton knockout from light nuclei Reviewed

    T.Noro, T. Yonemura, S. Asaji, N.S. Chant, K. Fujita, Y. Hagihara, K. Hatanaka, G.C. Hillhouse, T. Ishida, M. Itoh, S. Kishi, M. Nakamura, Y. Nagasue, H. Sakaguchi, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tameshige, S. Terashima, M. Uchida, T. Wakasa, Y. Yasuda, H.P. Yoshida, M. Yosoi

    Physical Review C   72 ( 4 )   041602(1) - 041602(5)   2005.4

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    Analyzing powers for exclusive 1s1/2 proton knockout from light nuclei

    DOI: 10.1103/PhysRevC.72.041602

  • Analyzing powers for exclusive 1s1/2 proton knockout from light nuclei Reviewed

    T. Noro, T. Yonemura, S. Asaji, N. S. Chant, Kunihiro Fujita, Y. Hagihara, K. Hatanaka, G. C. Hillhouse, T. Ishida, M. Itoh, S. Kishi, M. Nakamura, Y. Nagasue, H. Sakaguchi, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tamesige, S. Terashima, M. Uchida, T. Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Physical Review C - Nuclear Physics   72 ( 4 )   2005.1

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    DOI: 10.1103/PhysRevC.72.041602

  • Study of single-particle properties of nuclei and in-medium NN interaction by using (p, 2p) reactions Reviewed

    T. Noro, S. Asaji, K. Fujita, Y. Hagihara, K. Hatanaka, T. Ishida, M. Ito, S. Kishi, Y. Nagasue, M. Nakamura, H. Sakaguchi, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tamashige, S. Terashima, M. Uchida, T. Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi, T. Yonemura

    Journal of Physics: Conference Series   20 ( 1 )   101 - 106   2005.1

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    DOI: 10.1088/1742-6596/20/1/017

  • Spin isospin responses in nuclei and their unified understanding with Landau-Migdal parameters Reviewed

    Tomotsugu Wakasa

    Journal of Physics: Conference Series   20 ( 1 )   22 - 27   2005.1

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    DOI: 10.1088/1742-6596/20/1/004

  • Determination of Gamow-Teller unit cross sections of the (p, n) reaction at 200 and 300 MeV Reviewed

    M. Sasano, H. Sakai, K. Yako, T. Saito, H. Kuboki, Y. Takahasi, Tomotsugu Wakasa, S. Asaji, Y. Hagihara, K. Hatanaka, A. Tamii, Y. Sakemi, Y. Tameshige, Y. Shimizu, Kunihiro Fujita, Y. Fujita, H. Okamura, K. Sekiguchi, Y. Maeda, T. Kawabata, M. B. Greenfield

    Journal of Physics: Conference Series   20 ( 1 )   181 - 182   2005.1

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    DOI: 10.1088/1742-6596/20/1/036

  • Isospin symmetry of Tz = ± 3/2 → ±1/2 Gamow-Teller transitions in A=41 nuclei Reviewed

    70 ( 5 )   54311   2004.11

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    Under the assumption that isospin I is a good quantum number, isobaric analog states and various analogous transitions are expected in isobars with mass number A. The strengths of Tz=+3/2→+1/2 analogous Gamow-Teller (GT) transitions and analogous M1 transitions within the A=41 isobar quartet are compared in detail. The Tz= +3/2+1/2 GT transitions from the Jπ=3/2+ ground state of 41K leading to excited Jπ = 1/2+, 3/2 +, and 5/2+ states in 41Ca were measured using the (3He,t) charge-exchange reaction. With a high energy resolution of 35 keV, many fragmented states were observed, and the GT strength distribution was determined up to 10 MeV excitation energy (Ex). The main part of the strength was concentrated in the Ex =4-6 MeV region. A shell-model calculation could reproduce the concentration, but not so well details of the strength distribution. The obtained distribution was further compared with two results of 41Ti βdecay studying the analogous Tz=-3/2→-1/2 GT strengths. They reported contradicting distributions. One-to-one correspondences of analogous transitions and analog states were assigned up to Ex=6 MeV in the comparison with one of these 41Ti β-decay results. Combining the spectroscopic information of the analog states in 41Ca and 41 Sc, the most probable Jπ values were deduced for each pair of analog states. It was found that 5/2+ states carry the main part of the observed GT strength, while much less GT strength was carried by 1/2+ and 3/2+ states. The gross features of the GT strength distributions for each J were similar for the isospin analogous Tz=±3/ 2→±1/2 transitions, but the details were somewhat different. From the difference of the distributions, isospin-asymmetry matrix elements of ≈8 keV were deduced. The Coulomb displacement energy, which is sensitive to the configuration of states, showed a sudden increase of about 50 keV at the excitation energy of 3.8 MeV. The strengths of several Ml transitions to the IAS in 41Ca were compared with the strengths of analogous GT transitions. It was found that ratios of the M1 and GT transition strengths were similar, suggesting that the contributions of the lτ term in M1 transitions are small.

    DOI: 10.1103/PhysRevC.70.054311

  • Weak isoscalar response of 11B Reviewed

    T. Kawabata, H. Akimune, H. Fujimura, H. Fujita, Y. Fujita, M. Fujiwara, K. Hara, K. Y. Hara, K. Hatanaka, T. Ishikawa, M. Itoh, J. Kamiya, M. Nakamura, H. Sakaguchi, Y. Shimbara, H. Takeda, A. Tamii, T. Noro, H. Toyokawa, M. Uchida, T. Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Physics of Atomic Nuclei   67 ( 10 )   1974 - 1798   2004.10

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  • Weak isoscalar response of11B

    T. Kawabata, H. Akimune, H. Fujimura, H. Fujita, Y. Fujita, M. Fujiwara, K. Hara, K. Y. Hara, K. Hatanaka, T. Ishikawa, M. Itoh, J. Kamiya, M. Nakamura, H. Sakaguchi, Y. Shimbara, H. Takeda, A. Tamii, T. Noro, H. Toyokawa, M. Uchida, T. Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Physics of Atomic Nuclei   67 ( 10 )   1974 - 1798   2004.10

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    Weak isoscalar response of11B
    Weak-interaction responses of11B were studied by measuring the11B(3He, t) and11B(p, p′) reactions. Obtained nuclear transition matrix elements B(GT), B(στ), and B(σ) were compared with the shell-model calculations. The shell-model calculations, which explained the isovector parts B(GT) and B(στ) reasonably well if the quenching factors of 0.5-0.7 were taken into account, did not describe the isoscalar part B(σ). © 2004 MAIK "Nauka/Interperiodica".

    DOI: 10.1134/1.1811180

  • Total spin transfer in continuum for 90Zr(p, n) reaction at 295 MeV Reviewed

    Tomotsugu Wakasa, Hideyuki Sakai, Hiroyuki Okamura, Hideaki Otsu, Takamasa Nonaka, Tetsuya Ohnishi, Kentaro Yako, Kimiko Sekiguchi, Satoshi Fujita, Tomohiro Uesaka, Yoshiteru Satou, Satoru Ishida, Naruhiko Sakamoto, Mark B. Greenfield, Kichiji Hatanaka

    journal of the physical society of japan   73 ( 7 )   1611 - 1614   2004.7

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    DOI: 10.1143/JPSJ.73.1611

  • Total spin transfer in continuum for Zr-90(p, n) reaction at 295 MeV Reviewed

    T Wakasa, H Sakai, H Okamura, H Otsu, T Nonaka, T Ohnishi, K Yako, K Sekiguchi, S Fujita, T Uesaka, Y Satou, S Ishida, N Sakamoto, MB Greenfield, K Hatanaka

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   73 ( 7 )   1611 - 1614   2004.7

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    DOI: 10.1143/JPSJ.73.1611

  • Polarization transfer measurement for H-1((d)over-right-arrow,(p)over-right-arrow)H-2 elastic scattering at 135 MeV/nucleon and three-nucleon force effects Reviewed

    K Sekiguchi, H Sakai, H Witala, K Ermisch, W Glockle, J Golak, M Hatano, H Kamada, N Kalantar-Nayestanaki, H Kato, Y Maeda, J Nishikawa, A Nogga, T Ohnishi, H Okamura, T Saito, N Sakamoto, S Sakoda, Y Satou, K Suda, A Tamii, T Uchigashima, T Uesaka, T Wakasa, K Yako

    PHYSICAL REVIEW C   70 ( 1 )   2004.7

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    DOI: 10.1103/PhysRevC.70.014001

  • Pionic enhancement in quasielastic ((p)over-right-arrow,(n)over-right-arrow) reactions at 345 MeV Reviewed

    T Wakasa, H Sakai, M Ichimura, K Hatanaka, MB Greenfield, M Hatano, J Kamiya, H Kato, K Kawahigashi, Y Maeda, Y Nakaoka, H Okamura, T Ohnishi, H Otsu, K Sekiguchi, K Suda, A Tamii, T Uesaka, T Yagita, K Yako

    PHYSICAL REVIEW C   69 ( 5 )   2004.5

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    DOI: 10.1103/PhysRevC.69.054609

  • Polarization transfer and spin response functions of the 2H(p→,n→) reaction at 345 MeV Reviewed

    69 ( 4 )   44602 - 44601   2004.4

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    Differential cross sections and a complete set of polarization observables have been measured in the quasielastic 2H(p,n) reaction at a bombarding energy of 345 MeV and laboratory scattering angles of 16°, 22°, and 27°. The data are compared with plane-wave impulse approximation calculations employing an optimal factorization approximation. The agreement between the experimental and theoretical results validates these approximations in the present momentum- and energy-transfer regions. The experimental spin-longitudinal and spin-transverse response functions, R L and RT, respectively, are deduced from the data. The obtained RT is consistent with that obtained from the quasielastic electron scattering. The theoretical calculations with the Reid soft core potential give good descriptions for RL and RT, whereas the latter is slightly underestimated around the quasielastic peak.

    DOI: 10.1103/PhysRevC.69.044602

  • Versatile production method of thin targets supported by PVA

    Y. Shimbara, Y. Fujita, M. Hamaguchi, E. Mochizuki, T. Adachi, G. P.A. Berg, G. P.A. Berg, H. Fujimura, H. Fujita, H. Fujita, K. Fujita, K. Hara, K. Hara, K. Hatanaka, J. Kamiya, J. Kamiya, K. Kawase, T. Kawabata, T. Kawabata, Y. Kitamura, K. Nakanishi, N. Sakamoto, Y. Sakemi, Y. Shimizu, Y. Tameshige, M. Uchida, T. Wakasa, T. Wakasa, K. Yamasaki, M. Yoshifuku, M. Yosoi

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   522   205 - 211   2004.4

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    Versatile production method of thin targets supported by PVA
    Thin self-supporting targets are indispensable in high energy-resolution studies using a magnetic spectrometer. However, nuclear targets of alkaline and alkaline-earth metal or halogen isotopes are not easily available. In order to produce thin target foils of these elements for the use in charge-exchange reactions, we take advantage of the fact that the stable isotopes of these elements have relatively small negative Q values, while12C and16O have large negative Q values. Therefore, even if organic compounds containing carbon and oxygen are used as supporting material, clean spectra on alkaline and alkaline-earth metal or halogen targets can be obtained up to the excitation energies of Q-value differences. A technique to produce thin foils of the chemical compounds Na2CO3,K2CO3,CaCO3and CaCl2was developed using polyvinylalcohol as supporting material. Foils with a total thickness of 1-2 mg/cm2were produced and used as targets in a (3He,t) reaction study at an incident energy of 420 MeV. Owing to the small contributions of energy-loss differences of beam and reaction products in such thin targets, a very good resolution of ΔE/E=7×10-5was achieved in combination with a high-resolution magnetic spectrometer. © 2003 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.nima.2003.12.002

  • Polarization transfer and spin response functions of the H-2((p)over-right-arrow,(n)over-right-arrow) reaction at 345 MeV Reviewed

    T Wakasa, H Sakai, M Ichimura, K Hatanaka, MB Greenfield, M Hatano, J Kamiya, H Kato, Y Maeda, H Okamura, T Ohnishi, H Otsu, K Sekiguchi, K Suda, A Tamii, T Uesaka, T Yagita, K Yako

    PHYSICAL REVIEW C   69 ( 4 )   2004.4

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    DOI: 10.1103/PhysRevC.69.044602

  • Versatile production method of thin targets supported by PVA Reviewed

    Y. Shimbara, Y. Fujita, M. Hamaguchi, E. Mochizuki, T. Adachi, G. P.A. Berg, H. Fujimura, H. Fujita, Kunihiro Fujita, K. Hara, K. Hatanaka, J. Kamiya, K. Kawase, T. Kawabata, Y. Kitamura, K. Nakanishi, N. Sakamoto, Y. Sakemi, Y. Shimizu, Y. Tameshige, M. Uchida, Tomotsugu Wakasa, K. Yamasaki, M. Yoshifuku, M. Yosoi

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   522 ( 3 )   205 - 211   2004.4

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    DOI: 10.1016/j.nima.2003.12.002

  • Evidence for the Existence of the [2 0 2]3/2 Deformed Band in Mirror Nuclei 25Mg and 25Al Reviewed

    Y. Fujita, I. Hamamoto, H. Fujita, Y. Shimbara, T. Adachi, G. P.A. Berg, K. Fujita, K. Hatanaka, J. Kamiya, K. Nakanishi, Y. Sakemi, Y. Shimizu, M. Uchida, T. Wakasa, M. Yosoi

    Physical Review Letters   92 ( 6 )   625021 - 625024   2004.2

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  • Polarization for proton knockout reactions from s1/2 orbits at 1 GeV Reviewed

    V. A. Andreev, M.N. Andronenko, G.M. Amalsky, S.L. Belostotski, O.A. Domchenkov, O.Ya Fedorov, K. Hatanaka, A.A. Izotov, A.A. Jgoun, J. Kamiya, A.Yu Kisselev, M.A. Kopytin, O.V. Miklukho, Yu.G. Naryshkin, T. Noro, E. Obayashi, A.N. Prokofiev, D.A. Prokofiev, H. Sakaguchi, V.V. Sulimov, A.V. Shvedchikov, H. Takeda, S.I. Trush, V.V. Virkhrov, T. Wakasa, Y. Yasuda, H.P. Yoshida, A. Zhdanov

    Physical Review C   69 ( 2 )   024604(1) - 024604(7)   2004.2

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    Polarization for proton knockout reactions from s1/2 orbits at 1 GeV

    DOI: 10.1103/PhysRevC.69.024604

  • Measurement of the vector and tensor analyzing powers for the d-p elastic scattering at E(d)=270 MeV Reviewed International journal

    Sakamoto N, Okamura H, Uesaka T, Ishida S, Otsu H, Wakasa T, Satou Y, Niizeki T, Katoh K, Yamashita T, Hatanaka K, Koike Y, Sakai H

    PHYSICS LETTERS B   2004.1

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  • Suppression of Gamow-Teller and M1 transitions in deformed mirror nuclei 25Mg and 25Al Direct observation of K selection rules Reviewed

    Y. Shimbara, Y. Fujita, T. Adachi, G. P.A. Berg, H. Fujita, Kunihiro Fujita, I. Hamamoto, K. Hatanaka, J. Kamiya, K. Nakanishi, Y. Sakemi, Y. Shimizu, M. Uchida, T. Wakasa, M. Yosoi

    European Physical Journal A   19 ( 1 )   25 - 31   2004.1

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    DOI: 10.1140/epja/i2003-10115-2

  • Polarizations for proton knockout reactions from [Formula Presented] orbits at [Formula Presented] Reviewed

    V. A. Andreev, M. N. Andronenko, G. M. Amalsky, S. L. Belostotski, O. A. Domchenkov, O. Ya Fedorov, K. Hatanaka, A. A. Izotov, A. A. Jgoun, J. Kamiya, A. Yu Kisselev, M. A. Kopytin, O. V. Miklukho, Yu G. Naryshkin, T. Noro, E. Obayashi, A. N. Prokofiev, D. A. Prokofiev, H. Sakaguchi, V. V. Sulimov, A. V. Shvedchikov, H. Takeda, S. I. Trush, V. V. Vikhrov, Tomotsugu Wakasa, Y. Yasuda, H. P. Yoshida, A. Zhdanov

    Physical Review C - Nuclear Physics   69 ( 2 )   2004.1

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    DOI: 10.1103/PhysRevC.69.024604

  • Polarizations for proton knockout reactions from s1/2 orbits at 1 GeV Reviewed

    V. A. Andreev, M. N. Andronenko, G. M. Amalsky, S. L. Belostotski, O. A. Domchenkov, O. Ya Fedorov, K. Hatanaka, A. A. Izotov, A. A. Jgoun, J. Kamiya, A. Yu Kisselev, M. A. Kopytin, O. V. Miklukho, Yu G. Naryshkin, Tetsuo Noro, E. Obayashi, A. N. Prokofiev, D. A. Prokofiev, H. Sakaguchi, V. V. Sulimov, A. V. Shvedchikov, H. Takeda, S. I. Trush, V. V. Vikhrov, Tomotsugu Wakasa, Y. Yasuda, H. P. Yoshida, A. Zhdanov

    Physical Review C - Nuclear Physics   69 ( 2 )   246041 - 246047   2004.1

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  • Polarization transfer measurement for 1 H(d→,p→) 2 H elastic scattering at 135 MeV/nucleon and three-nucleon force effects Reviewed

    K. Sekiguchi, H. Sakai, H. Witała, K. Ermisch, W. Glöckle, J. Golak, M. Hatano, H. Kamada, N. Kalantar-Nayestanaki, H. Kato, Y. Maeda, J. Nishikawa, A. Nogga, T. Ohnishi, H. Okamura, T. Saito, N. Sakamoto, S. Sakoda, Y. Satou, K. Suda, A. Tamii, T. Uchigashima, T. Uesaka, Tomotsugu Wakasa, K. Yako

    70 ( 1 )   2004.1

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    The deuteron-to-proton polarization-transfer coefficients for d-p elastic scattering were precisely measured with an incoming deuteron energy of 135 MeV/nucleon at the RIKEN Accelerator Research Facility. The data are compared to theoretical predictions based on exact solutions of the three-nucleon Faddeev equations with high-precision nucleon-nucleon forces combined with the current, most popular three-nucleon force (3NF) models: the 2π-exchange Tucson-Melbourne model, a modification thereof based on chiral symmetry, TM'(99), and the Urbana IX 3NF. Theory predicts large 3NF effects, especially in the angular range around the cross section minimum, predominantly for K
    xx
    y′
    -K
    yy
    y′
    (K
    xx
    y′
    ,K
    yy
    y′
    ), but the present data only partially concurs with the calculations. For the induced polarization, P
    y′
    , the TM′(99) and Urbana IX 3NFs reproduce the data, but the Tucson-Melbourne 3NF fails to describe the data. For the polarization-transfer coefficients, K
    y
    y′
    and K
    xz
    y′
    , the predicted 3NF effects are in drastic disagreement with the data. These facts clearly reveal the defects of the 3NF models currently used.

    DOI: 10.1103/PhysRevC.70.014001

  • Pionic enhancement in quasielastic (p,n) reactions at 345 MeV Reviewed

    69 ( 5 )   2004.1

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    Differential cross sections and a complete set of polarization observables have been measured for quasielastic (p,n) reactions on 12C and 40Ca at a bombarding energy of 345 MeV. The laboratory momentum transfers are qlab ≃ 1.2, 1.7, and 2.0 fm-1 for 12C and qlab≃ 1.7 fm -1 for 40Ca. In these momentum transfer regions, the isovector spin-longitudinal interaction is attractive where the one-pion exchange is dominant. The spin-longitudinal and spin-transverse polarized cross sections, IDq and IDp, are deduced. The theoretically expected enhancement in the spin-longitudinal mode is observed at q lab≃1.7 and 2.0 fm-1. The observed IDq is consistent with the pionic enhanced IDq evaluated in distorted wave impulse approximation (DWIA) calculations employing random phase approximation (RPA) response functions. The enhanced IDq implies the existence of a precursor to pion condensation in nuclei. On the other hand, the theoretically predicted quenching in the spin-transverse mode is not observed. The observed IDp is not quenched, but rather enhanced relative to that predicted via the DWIA+RPA calculations. Two-step contributions are responsible in part for the enhancement of IDp.

    DOI: 10.1103/PhysRevC.69.054609

  • Isovector and isoscalar spin-flip M1 strengths in11B Reviewed

    T. Kawabata, H. Akimune, H. Fujimura, H. Fujita, Y. Fujita, M. Fujiwara, K. Hara, K. Y. Hara, K. Hatanaka, T. Ishikawa, M. Itoh, J. Kamiya, S. Kishi, M. Nakmura, K. Nakanishi, Tetsuo Noro, H. Sakaguchi, Y. Shimbara, H. Takeda, A. Tamii, S. Terashima, H. Toyokawa, M. Uchida, H. Ueno, Tomotsugu Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Physical Review C - Nuclear Physics   70 ( 3 )   343181 - 3431810   2004.1

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    DOI: 10.1103/PhysRevC.70.034318

  • Evidence for the Existence of the [Formula presented] Deformed Band in Mirror Nuclei [Formula presented] and [Formula presented] Reviewed

    Y. Fujita, I. Hamamoto, H. Fujita, Y. Shimbara, T. Adachi, G. P.A. Berg, Kunihiro Fujita, K. Hatanaka, J. Kamiya, K. Nakanishi, Y. Sakemi, Y. Shimizu, M. Uchida, T. Wakasa, M. Yosoi

    Physical Review Letters   92 ( 6 )   2004.1

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    DOI: 10.1103/PhysRevLett.92.062502

  • pd scattering at 250 MeV and three-nucleon forces Reviewed International journal

    Hatanaka K, Kamiya J, Maeda Y, Noro T, Sagara K, Sakai H, Sakemi Y, Sekiguchi K, Shimizu Y, Tamii A, Wakasa T, Yako K, Yoshida HP, Ladygin VP

    EUROPEAN PHYSICAL JOURNAL A   18 ( 2-3 )   293 - 296   2003.11

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    pd scattering at 250 MeV and three-nucleon forces

    DOI: 10.1140/epja/i2002-10219-1

  • pd scattering at 250 MeV and three-nucleon forces Reviewed

    K Hatanaka, J Kamiya, Y Maeda, T Noro, K Sagara, H Sakai, Y Sakemi, K Sekiguchi, Y Shimizu, A Tamii, T Wakasa, K Yako, HP Yoshida, VP Ladygin

    EUROPEAN PHYSICAL JOURNAL A   18 ( 2-3 )   293 - 296   2003.11

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    DOI: 10.1140/epja/i2002-10219-1

  • Resonance states in 22Mg for reaction rates in the rp-process Reviewed

    Nuclear Physics A   723 ( 1-2 )   2003.7

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    DOI: 10.1016/S0375-9474(03)00900-X

  • Calibration of the effective analyzing power for a 3He polarimeter at 443 MeV

    J. Kamiya, K. Hatanaka, T. Adachi, K. Fujita, K. Hara, T. Kawabata, T. Kawabata, T. Noro, H. Sakaguchi, N. Sakamoto, Y. Sakemi, Y. Shimbara, Y. Shimizu, S. Terashima, M. Uchida, T. Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   507   703 - 711   2003.7

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    Calibration of the effective analyzing power for a 3He polarimeter at 443 MeV
    The effective analyzing power for a 3He polarimeter was calibrated at E3He = 443 MeV. For the calibration, the absolute magnitude of the polarization was determined by means of the double scattering method using the 3He scattering on 12C at 7° in the laboratory frame. The effective analyzing power of Ayeff = 0.232±0.010-0.015+0.017 was obtained for the polarimeter with a plastic scintillator of 16 mm thickness as analyzer. The energy dependence of Ayeff was measured. The first data of the induced polarization for 3He+12C elastic scattering at E3He = 443 MeV will be presented. © 2003 Elsevier Science B.V. All rights reserved.

    DOI: 10.1016/S0168-9002(03)01436-0

  • Cross section and induced polarization in He-3 elastic scattering at 443 MeV Reviewed International journal

    Kamiya J, Hatanaka K, Adachi T, Fujita K, Hara K, Kawabata T, Noro T, Sakaguchi H, Sakamoto N, Sakemi Y, Shimbara Y, Shimizu Y, Terashima S, Uchida M, Wakasa T, Yasuda Y, Yoshida HP, Yosoi M

    PHYSICAL REVIEW C   67 ( 6 )   2003.6

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    Cross section and induced polarization in He-3 elastic scattering at 443 MeV

    DOI: 10.1103/PhysRevC.67.064612

  • Search for narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions Reviewed

    A Tamii, K Hatanaka, M Hatano, D Hirooka, J Kamiya, H Kato, Y Maeda, T Saito, H Sakai, S Sakoda, K Sekiguchi, N Uchigashima, T Wakasa, K Yako

    NUCLEAR PHYSICS A   721   621C - 624C   2003.6

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    DOI: 10.1016/S0375-9474(03)01137-0

  • Polarization transfer measurement for d-p scattering and three nucleon force effects Reviewed

    K Sekiguchi, H Sakai, H Okamura, A Tamii, T Uesaka, K Suda, N Sakamoto, T Wakasa, Y Satou, T Ohnishi, K Yako, S Sakoda, K Suda, H Kato, Y Maeda, M Hatano, J Nishikawa, T Saito, N Uchigashima, N Kalantar-Nayestanaki, K Ermisch

    NUCLEAR PHYSICS A   721   637C - 640C   2003.6

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    DOI: 10.1016/S0375-9474(03)01141-2

  • Search for narrow dibaryon resonances by the pd → pdX and pd → ppX reactions Reviewed

    721   C621 - C624   2003.6

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    Dibaryons which have a very narrow decay width, called super-narrow dibaryons, are searched for by the p+d scattering at Ep = 295 MeV. The experiment was carried out at the Research Center for Nuclear Physics employing a two-arm magnetic spectrometer. A good mass resolution of 0.95 MeV and background free condition have been achieved. No resonance has been observed in the mass region of 1896-1914 MeV. The upper limits of the dibaryon production cross section have been determined.

    DOI: 10.1016/S0375-9474(03)01137-0

  • Polarization transfer measurement for d-p scattering and three nucleon force effects Reviewed

    K. Sekiguchi, H. Sakai, H. Okamura, A. Tamii, T. Uesaka, K. Suda, N. Sakamoto, T. Wakasa, Y. Satou, T. Ohnishi, K. Yako, S. Sakoda, K. Suda, H. Kato, Y. Maeda, M. Hatano, J. Nishikawa, T. Saito, N. Uchigashima, N. Kalantar-Nayestanaki, K. Ermisch

    Nuclear Physics A   721   C637 - C640   2003.6

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    DOI: 10.1016/S0375-9474(03)01141-2

  • Search for narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions Invited Reviewed International journal

    Tamii A, Hatanaka K, Hatano M, Hirooka D, Kamiya J, Kato H, Maeda Y, Saito T, Sakai H, Sakoda S, Sekiguchi K, Uchigashima N, Wakasa T, Yako K

    NUCLEAR PHYSICS A   2003.6

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    Search for narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions

  • Polarization transfer measurement for d-p scattering and three nucleon force effects Invited Reviewed International journal

    Sekiguchi K, Sakai H, Okamura H, Tamii A, Uesaka T, Suda K, Sakamoto N, Wakasa T, Satou Y, Ohnishi T, Yako K, Sakoda S, Suda K, Kato H, Maeda Y, Hatano M, Nishikawa J, Saito T, Uchigashima N, Kalantar-Nayestanaki N, Ermisch K

    NUCLEAR PHYSICS A   2003.6

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    Polarization transfer measurement for d-p scattering and three nucleon force effects

  • New capabilities of the Grand Raiden spectrometer Invited Reviewed International journal

    Wakasa T, Berg GPA, Fujita H, Fujita Y, Hatanaka K, Hara K, Itoh M, Kamiya J, Kawabata T, Nagayama K, Noro T, Sakaguchi H, Shimbara Y, Shinada Y, Takeda H, Tamura K, Ueno H, Uchida M, Uraki M, Yosoi M

    NUCLEAR PHYSICS A   721   1099C - 1102C   2003.6

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    New capabilities of the Grand Raiden spectrometer

    DOI: 10.1016/S0375-9474(03)01294-6

  • Resonance states in Mg-22 for reaction rates in the rp-process Invited Reviewed International journal

    Berg GPA, Hatanaka K, Wiescher M, Schatz H, Adachi T, Bacher AD, Foster CC, Fujita Y, Fujita H, Fujita K, Gorres J, Herman C, Kamiya J, Sakamoto N, Sakemi Y, Shimbara Y, Shimizu Y, Stephenson EJ, Wakasa T, Yosoi M

    NUCLEAR PHYSICS A   2003.5

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    Resonance states in Mg-22 for reaction rates in the rp-process

  • Cross section and induced polarization in 3He elastic scattering at 413 MeV Reviewed

    J. Kamiya, K. Hatanaka, T. Adachi, K. Fujita, K. Hara, T. Kawabata, T. Noro, H. Sakaguchi, N. Sakamoto, Y. Sakemi, Y. Shimbara, Y. Shimizu, S. Terashima, M. Uchida, T. Wakasa, Y. Yasuda, H.P. Yoshida, M. Yosoi

    Physical Review C   67 ( 6 )   064612(1) - 064612(11)   2003.3

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    Cross section and induced polarization in 3He elastic scattering at 413 MeV
    Angular distributions of the differential cross section and the induced polarization of He-3 elastic scattering on C-12, Ni-58, and Zr-90 targets were measured at 443 MeV incident energy. This is the first measurement of 3He spin observables at intermediate energies. Cross sections and polarizations were measured in the range of center-of-mass angles of 5degrees- 30degrees and 5degrees- 20degrees, respectively. The polarization was measured with the focal plane polarimeter system of the Grand Raiden spectrometer, which was calibrated for He-3 at the present energy. The optical potential parameters including the spin-orbit term were determined by a systematic search procedure. The diffuseness parameter of the spin-orbit potential was about 0.6 - 0.8 fm in contrast to much smaller values of 0.2 - 0.3 fm reported at lower energies. The energy dependence of the reduced volume integrals of the optical potential was found to be similar to that observed for protons at intermediate energies, but the real potential terms were smaller. Single folding (SF) model calculations were performed and compared with the experimental data. We found that the renormalization factors used to modify the SF potential were necessary in order to obtain a good fit to the data. These results call for an appropriate density dependent nucleon-nucleus interaction in the He-3 nucleus.

    DOI: 10.1103/PhysRevC.67.064612

  • Measurement of p+d elastic scattering at E-p=392 MeV Invited Reviewed International journal

    Tamii A, Uchigashima N, Sakai H, Hatano M, Maeda Y, Saito T, Ishida T, Kuboki H, Hatanaka K, Wakasa T, Kamiya J, Shimizu Y, Kitamura Y, Okamura H, Suda K, Yako K, Sekiguchi K, Satou Y

    MODERN PHYSICS LETTERS A   2003.2

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    Measurement of p+d elastic scattering at E-p=392 MeV

  • Three-body effects in (p)over-right-arrowd elastic scattering at 250 MeV Reviewed

    Y Shimizu, K Hatanaka, Y Sakemi, T Wakasa, HP Yoshida, J Kamiya, T Saito, H Sakai, A Tamii, K Sekiguchi, K Yako, Y Maeda, T Noro, K Sagara, VP Ladygin

    MODERN PHYSICS LETTERS A   18 ( 2-6 )   313 - 316   2003.2

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    DOI: 10.1142/S0217732303010417

  • Tensor anomaly in pd radiative capture Reviewed

    T Yagita, K Sagara, T Ishida, S Minami, K Tsuruta, T Noro, J Kamiya, T Wakasa, H Yoshida, M Yoshimura, K Hatanaka, H Akiyoshi

    MODERN PHYSICS LETTERS A   18 ( 2-6 )   322 - 326   2003.2

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  • Search for super-narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions Reviewed

    A Tamii, M Hatano, H Kato, Y Maeda, T Saito, H Sakai, S Sakoda, N Uchigashima, K Hatanaka, D Hirooka, J Kamiya, T Wakasa, K Yako, K Sekiguchi, T Uesaka

    MODERN PHYSICS LETTERS A   18 ( 2-6 )   410 - 413   2003.2

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    DOI: 10.1142/S0217732303010582

  • Polarization transfer measurement for d-p elastic scattering: to search for three nucleon force effects Reviewed

    K Sekiguchi, H Sakai, H Okamura, A Tamii, T Uesaka, K Suda, N Sakamoto, T Wakasa, Y Satou, T Ohnishi, K Yako, S Sakoda, H Kato, Y Maeda, M Hatano, J Nishikawa, T Saito, N Uchigashima, N Kalantar-Nayestanaki, K Ermisch

    MODERN PHYSICS LETTERS A   18 ( 2-6 )   327 - 329   2003.2

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    DOI: 10.1142/S0217732303010442

  • Measurement of p+d elastic scattering at E-p=392 MeV Reviewed

    A Tamii, N Uchigashima, H Sakai, M Hatano, Y Maeda, T Saito, T Ishida, H Kuboki, K Hatanaka, T Wakasa, J Kamiya, Y Shimizu, Y Kitamura, H Okamura, K Suda, K Yako, K Sekiguchi, Y Satou

    MODERN PHYSICS LETTERS A   18 ( 2-6 )   440 - 443   2003.2

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    DOI: 10.1142/S0217732303010648

  • Search for super-narrow dibaryon resonances by the pd →, pdX and pd → ppX reactions Reviewed

    18 ( 2-6 )   410 - 413   2003.2

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    Dibaryons which have a very narrow decay width, called super-narrow dibaryons, are searched for by the p+d scattering at Ep = 295 MeV. The experiment was carried out at the Research Center for Nuclear Physics employing a two-arm magnetic spectrometer. A good mass resolution of 0.95 MeV and background free condition have been achieved. No resonance has been observed in the mass region of 1896-1914 MeV. The upper limits of the dibaryon production cross section have been determined.

    DOI: 10.1142/S0217732303010582

  • Polarization transfer measurement for d-p elastic scattering To search for three nucleon force effects Reviewed

    K. Sekiguchi, H. Sakai, H. Okamura, A. Tamii, T. Uesaka, K. Suda, N. Sakamoto, T. Wakasa, Y. Satou, T. Ohnishi, K. Yako, S. Sakoda, H. Kato, Y. Maeda, M. Hatano, J. Nishikawa, T. Saito, N. Uchigashima, N. Kalantar-Nayestanaki, K. Ermisch

    Modern Physics Letters A   18 ( 2-6 )   327 - 329   2003.2

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    DOI: 10.1142/S0217732303010442

  • Measurement of p+d elastic scattering at Ep=392 MeV Reviewed

    A. Tamii, N. Uchigashima, H. Sakai, M. Hatano, Y. Maeda, T. Saito, T. Ishida, H. Kuboki, K. Hatanaka, Tomotsugu Wakasa, J. Kamiya, Y. Shimizu, Y. Kitamura, H. Okamura, K. Suda, K. Yako, K. Sekiguchi, Y. Satou

    Modern Physics Letters A   18 ( 2-6 )   440 - 443   2003.2

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    DOI: 10.1142/S0217732303010648

  • Measurement of differential cross sections and vector analyzing powers for the n d reaction at 250MEV Reviewed

    18 ( 2-6 )   298 - 301   2003.2

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    To study the three-nucleon force (3NF) effects without ambiguities from the Coulomb effect, the differential cross sections and the vector analyzing powers for the n

    d elastic scattering at E
    n
    = 245 MeV have been measured at θ
    cm
    = 85° - 180°. The data are compared to the results of Faddeev calculations using modern nucleon-nucleon (NN) forces with and without 3NF. Additionally we have a plan to extend our measurement to the forward angular region where the Coulomb effect is expected to be large. We carried out the test experiment and measured the differential cross sections at θ
    cm
    = 21°.

    DOI: 10.1142/S0217732303010387

  • Three-body effects in (p)over-right-arrowd elastic scattering at 250 MeV Invited Reviewed International journal

    Shimizu Y, Hatanaka K, Sakemi Y, Wakasa T, Yoshida HP, Kamiya J, Saito T, Sakai H, Tamii A, Sekiguchi K, Yako K, Maeda Y, Noro T, Sagara K, Ladygin VP

    MODERN PHYSICS LETTERS A   18 ( 2-6 )   313 - 316   2003.2

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    Three-body effects in (p)over-right-arrowd elastic scattering at 250 MeV

    DOI: 10.1142/S0217732303010417

  • Tensor anomaly in pd radiative capture Invited Reviewed International journal

    Yagita T, Sagara K, Ishida T, Minami S, Tsuruta K, Noro T, Kamiya J, Wakasa T, Yoshida H, Yoshimura M, Hatanaka K, Akiyoshi H

    MODERN PHYSICS LETTERS A   18 ( 2-6 )   322 - 326   2003.2

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    Tensor anomaly in pd radiative capture

    DOI: 10.1142/S0217732303010430

  • Search for super-narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions Invited Reviewed International journal

    Tamii A, Hatano M, Kato H, Maeda Y, Saito T, Sakai H, Sakoda S, Uchigashima N, Hatanaka K, Hirooka D, Kamiya J, Wakasa T, Yako K, Sekiguchi K, Uesaka T

    MODERN PHYSICS LETTERS A   2003.2

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    Search for super-narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions

  • Polarization transfer measurement for d-p elastic scattering: to search for three nucleon force effects Invited Reviewed International journal

    Sekiguchi K, Sakai H, Okamura H, Tamii A, Uesaka T, Suda K, Sakamoto N, Wakasa T, Satou Y, Ohnishi T, Yako K, Sakoda S, Kato H, Maeda Y, Hatano M, Nishikawa J, Saito T, Uchigashima N, Kalantar-Nayestanaki N, Ermisch K

    MODERN PHYSICS LETTERS A   2003.2

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    Polarization transfer measurement for d-p elastic scattering: to search for three nucleon force effects

  • Cross section and induced polarization in 3He elastic scattering at 443 MeV Reviewed

    J. Kamiya, K. Hatanaka, T. Adachi, Kunihiro Fujita, K. Hara, T. Kawabata, T. Noro, H. Sakaguchi, N. Sakamoto, Y. Sakemi, Y. Shimbara, Y. Shimizu, S. Terashima, M. Uchida, Tomotsugu Wakasa, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Physical Review C - Nuclear Physics   67 ( 6 )   646121 - 6461211   2003.1

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  • Three body dN interaction in the analysis of the C-12((d)over-right-arrow, d ') reaction at 270 MeV Reviewed International journal

    Satou Y, Ishida S, Sakai H, Okamura H, Sakamoto N, Otsu H, Uesaka T, Tamii A, Wakasa T, Ohnishi T, Sekiguchi K, Yako K, Suda K, Hatano M, Kato H, Maeda Y, Nishikawa J, Ichihara T, Niizeki T, Kamada H, Glockle W, Witala H

    PHYSICS LETTERS B   2002.12

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    Three body dN interaction in the analysis of the C-12((d)over-right-arrow, d ') reaction at 270 MeV

  • Three body dN interaction in the analysis of the C-12((d)over-right-arrow, d ') reaction at 270 MeV Reviewed

    Y Satou, S Ishida, H Sakai, H Okamura, N Sakamoto, H Otsu, T Uesaka, A Tamii, T Wakasa, T Ohnishi, K Sekiguchi, K Yako, K Suda, M Hatano, H Kato, Y Maeda, J Nishikawa, T Ichihara, T Niizeki, H Kamada, W Glockle, H Witala

    PHYSICS LETTERS B   549 ( 3-4 )   307 - 313   2002.12

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  • Three-body dN interaction in the analysis of the 12C(d, d′) reaction at 270 MeV Reviewed

    Y. Satou, S. Ishida, H. Sakai, H. Okamura, N. Sakamoto, H. Otsu, T. Uesaka, A. Tamii, T. Wakasa, T. Ohnishi, K. Sekiguchi, K. Yako, K. Suda, M. Hatano, H. Kato, Y. Maeda, J. Nishikawa, T. Ichihara, T. Niizeki, H. Kamada, W. Glöckle, H. Witała

    549 ( 3-4 )   307 - 313   2002.12

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    We have measured the cross sections and analyzing powers Ay and Ayy for the elastic and inelastic scattering of deuterons from the 0+(g.s.), 2+(4.44 MeV), 3-(9.64 MeV), 1+(12.71 MeV), and 2-(18.3 MeV) states in 12C at an incident energy of 270 MeV. The data are compared with microscopic distorted-wave impulse approximation calculations where the projectile-nucleon effective interaction is taken from the three-nucleon t-matrix given by rigorous Faddeev calculations presently available at intermediate energies. The agreement between theory and data compares well with that for the (p, p′) reactions at comparable incident energies/nucleon.

    DOI: 10.1016/S0370-2693(02)02957-X

  • Cross section and complete set of proton spin observables in (p)over-right-arrow-d elastic scattering at 250 MeV Reviewed International journal

    Hatanaka K, Shimizu Y, Hirooka D, Kamiya J, Kitamura Y, Maeda Y, Noro T, Obayashi E, Sagara K, Saito T, Sakai H, Sakemi Y, Sekiguchi K, Tamii A, Wakasa T, Yagita T, Yako K, Yoshida HP, Ladygin VP, Kamada H, Glockle W, Golak J, Nogga A, Witala H

    PHYSICAL REVIEW C   66 ( 4 )   2002.10

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    Cross section and complete set of proton spin observables in (p)over-right-arrow-d elastic scattering at 250 MeV

    DOI: 10.1103/PhysRevC.66.044002

  • Control system for the two-arm spectrometer system at RCNP Reviewed

    T. Wakasa, Y. Sakemi, M. Uraki, K. Nagayama, K. Hatanaka

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   489 ( 1-3 )   379 - 388   2002.8

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    DOI: 10.1016/S0168-9002(02)00899-9

  • Control system for the two-arm spectrometer system at RCNP Reviewed

    T Wakasa, Y Sakemi, M Uraki, K Nagayama, K Hatanaka

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   489 ( 1-3 )   379 - 388   2002.8

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  • Polarization transfer in the 16O(p,p′) reaction at forward angles and structure of the spin-dipole resonances Reviewed

    65 ( 6 )   643161 - 6431612   2002.6

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    Cross Sections and polarization transfer observables in the 16O(p,p′) reactions at 392 MeV were measured at several angles between θlab =0° and 14°. The non-spin-flip (ΔS = 0) and spin-flip (ΔS = 1) strengths in transitions to several discrete States and broad resonances in 16O were extracted using a model-independent method. The giant resonances in the energy region of Ex = 19-27 MeV were found to be predominantly excited by ΔL = 1 transitions. The strength distribution of spin-dipole transitions with ΔS = 1 and ΔL = 1 were deduced. The obtained distribution was compared with a recent shell model calculation. Experimental results are reasonably explained by distorted-wave impulse-approximation calculations with the shell model wave functions.

  • He-3(d, p)He-4 reaction at intermediate energies and impulse picture of the (d, p) reactions Reviewed International journal

    Uesaka T, Nishikawa J, Okamura H, Suda K, Sakai H, Tamii A, Sekiguchi K, Yako K, Sakoda S, Kato H, Hatano M, Maeda Y, Saito T, Uchigashima N, Sakamoto N, Satou Y, Ohnishi T, Wakui T, Wakasa T, Itoh K

    PHYSICS LETTERS B   2002.5

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    He-3(d, p)He-4 reaction at intermediate energies and impulse picture of the (d, p) reactions

  • Measurement of analyzing powers of π+ and π- produced on a hydrogen and a carbon target with a 22-GeV/c incident polarized proton beam

    65 ( 9 A )   920081 - 9200824   2002.5

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    The analyzing powers of π+ and π- were measured using an incident 22-GeV/c transversely polarized proton beam at the Brookhaven Alternating Gradient Synchrotron. A magnetic spectrometer measured π± inclusive asymmetries on a hydrogen and a carbon target. An elastic polarimeter with a CH2 target measured pp elastic-scattering asymmetries to determine the beam polarization using published data for the pp elastic analyzing power. Using the beam polarization determined from the elastic polarimeter and asymmetries from the inclusive spectrometer, analyzing powers AN for π± were determined in the xF and PT ranges (0.45-0.8) and (0.3-1.2 GeV/c), respectively. The analyzing power results are similar in both sign and character to other measurements at 200 and 11.7 GeV/c, confirming the expectation that high-energy pion inclusive analyzing powers remain large and relatively energy independent. This suggests that pion inclusive polarimetry may be a suitable method for measuring future beam polarizations at BNL RHIC or DESY HERA. Analyzing powers of π+ and π- produced on hydrogen and carbon targets are the same. Various models to explain inclusive analyzing powers are also discussed.

    DOI: 10.1103/PhysRevD.65.092008

  • 3He(d, p)4He reaction at intermediate energies and impulse picture of the (d, p) reactions Reviewed

    T. Uesaka, J. Nishikawa, H. Okamura, K. Suda, H. Sakai, A. Tamii, K. Sekiguchi, K. Yako, S. Sakoda, H. Kato, M. Hatano, Y. Maeda, T. Saito, N. Uchigashima, N. Sakamoto, Y. Satou, T. Ohnishi, T. Wakui, T. Wakasa, K. Itoh

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   533 ( 1-2 )   1 - 7   2002.5

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    DOI: 10.1016/S0370-2693(02)01565-4

  • Measurement of analyzing powers of pi(+) and pi(-) produced on a hydrogen and a carbon target with a 22-GeV/c incident polarized proton beam Reviewed International journal

    Allgower CE, Krueger KW, Kasprzyk TE, Spinka HM, Underwood DG, Yokosawa A, Bunce G, Huang H, Makdisi Y, Roser T, Syphers M, Derevschikov AA, Matulenko YA, Nogach LV, Nurushev SB, Vasiliev AN, Bai M, Lee SY, Goto Y, Hayashi N, Ichihara T, Okamura M, Saito

    PHYSICAL REVIEW D   2002.5

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    Measurement of analyzing powers of pi(+) and pi(-) produced on a hydrogen and a carbon target with a 22-GeV/c incident polarized proton beam

  • High resolution beam line for the Grand Raiden spectrometer Reviewed International journal

    Wakasa T, Hatanaka K, Fujita Y, Berg GPA, Fujimura H, Fujita H, Itoh M, Kamiya J, Kawabata T, Nagayama K, Noro T, Sakaguchi H, Shimbara Y, Takeda H, Tamura K, Ueno H, Uchida M, Uraki M, Yosoi M

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   2002.4

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    High resolution beam line for the Grand Raiden spectrometer

  • Search for narrow dibaryon resonances by the pd -> pdX and pd -> ppX reactions Reviewed

    A Tamii, K Hatanaka, M Hatano, D Hirooka, J Kamiya, H Kato, Y Maeda, T Saito, H Sakai, S Sakoda, K Sekiguchi, N Uchigashima, T Uesaka, T Wakasa, K Yako

    PHYSICAL REVIEW C   65 ( 4 )   2002.4

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    DOI: 10.1103/PhysRevC.65.047001

  • High resolution beam line for the Grand Raiden spectrometer

    T. Wakasa, K. Hatanaka, Y. Fujita, G. P.A. Berg, G. P.A. Berg, H. Fujimura, H. Fujita, M. Itoh, J. Kamiya, T. Kawabata, K. Nagayama, T. Noro, H. Sakaguchi, Y. Shimbara, H. Takeda, K. Tamura, H. Ueno, M. Uchida, M. Uraki, M. Yosoi

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   482   79 - 93   2002.4

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    High resolution beam line for the Grand Raiden spectrometer
    We have designed and constructed a new beam line which can accomplish both lateral and angular dispersion matching with the Grand Raiden spectrometer. In dispersive mode, lateral and angular dispersions of the beam line are b16= 37.1 m and b26= -20.0 rad, respectively, to satisfy matching conditions for Grand Raiden. In achromatic mode, the beam line satisfies the double achromatic condition of b16= b26= 0. The magnifications of the beam line are (Mx, My) = (-0.98, 0.89) and (-1.00, -0.99) for dispersive and achromatic modes, respectively. In the commissioning experiments, we have succeeded to separate the first excited 2+state of168Er with Ex= 79.8 keV clearly from the ground state in the (p, p′) reaction. We achieved energy resolutions of ΔE = 13.0 ± 0.3 and 16.7 ± 0.3 keV in full width at half-maximum for 295 and 392 MeV protons, respectively. These energy resolutions agree with the resolving power of Grand Raiden for an object size of about 1 mm. © 2002 Elsevier Science B.V. All rights reserved.

    DOI: 10.1016/S0168-9002(01)01686-2

  • Search for narrow dibaryon resonances by the pd→pdX and pd→ppX reactions Reviewed

    65 ( 4 )   470011 - 470014   2002.4

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    Nucleon-nucleon decoupled dibaryons below the pion emission threshold have been investigated by the pd→pdX and pd→ppX reactions at Ep - 300 MeV. Such dibaryons are predicted to either decay into a deuteron or two nucleons by emitting a γ ray and consequently have a very narrow width of less than 1 keV. The experiment was carried out at the Research Center for Nuclear Physics employing a two-arm magnetic spectrometer. A mass resolution of 0.95 MeV and background-free condition have been achieved. No resonance was found in either the d + γ or p + n + γ decay channels within the mass region of 1896-1914 MeV. Upper limits for the dibaryon production cross section are presented.

  • High resolution beam line for the Grand Raiden spectrometer Reviewed

    T. Wakasa, K. Hatanaka, Y. Fujita, G. P.A. Berg, H. Fujimura, H. Fujita, M. Itoh, J. Kamiya, T. Kawabata, K. Nagayama, Tetsuo Noro, H. Sakaguchi, Y. Shimbara, H. Takeda, K. Tamura, H. Ueno, M. Uchida, M. Uraki, M. Yosoi

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   482 ( 1-3 )   79 - 93   2002.4

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  • Study of nuclear medium effects on polarization in (p, 2p) scattering at 1 GeV Invited Reviewed International journal

    Miklukho OV, Andreev VA, Andronenko MN, Amalsky GM, Belostotski SL, Domchenkov OA, Fedorov OY, Grebenyuk OG, Izotov AA, Jgoun AA, Kisselev AY, Kopytin MA, Naryshkin YG, Prokofiev AN, Prokofiev DA, Sanjiev YM, Shvedchikov AV, Sulimov VV, Trush SI, Vikhrov

    CZECHOSLOVAK JOURNAL OF PHYSICS   2002.4

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    Study of nuclear medium effects on polarization in (p, 2p) scattering at 1 GeV

  • Complete set of precise deuteron analyzing powers at intermediate energies: Comparison with modern nuclear force predictions Reviewed International journal

    Sekiguchi K, Sakai H, Witala H, Glockle W, Golak J, Hatano M, Kamada H, Kato H, Maeda Y, Nishikawa J, Nogga A, Ohnishi T, Okamura H, Sakamoto N, Sakoda S, Satou Y, Suda K, Tamii A, Uesaka T, Wakasa T, Yako K

    PHYSICAL REVIEW C   2002.3

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    Complete set of precise deuteron analyzing powers at intermediate energies: Comparison with modern nuclear force predictions

  • Cross sections and polarization observables for the Ca-40(p,n) reaction at 345 MeV and multistep contributions in the continuum Reviewed

    T Wakasa, K Hatanaka, H Sakai, MB Greenfield, J Kamiya, K Ogata, H Okamura, K Sekiguchi, K Suda, A Tamii, K Yako

    PHYSICAL REVIEW C   65 ( 3 )   2002.3

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    DOI: 10.1103/PhysRevC.65.034615

  • Complete set of precise deuteron analyzing powers at intermediate energies: Comparison with modern nuclear force predictions Reviewed

    K Sekiguchi, H Sakai, H Witala, W Glockle, J Golak, M Hatano, H Kamada, H Kato, Y Maeda, J Nishikawa, A Nogga, T Ohnishi, H Okamura, N Sakamoto, S Sakoda, Y Satou, K Suda, A Tamii, T Uesaka, T Wakasa, K Yako

    PHYSICAL REVIEW C   65 ( 3 )   2002.3

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    DOI: 10.1103/PhysRevC.65.034003

  • 3He(d, p)4He Reaction at Intermediate Energies and Impulse Picture of the (d, p) Reactions Reviewed

    T. Uesaka, J. Nishikawa, H. Okamura, K. Suda, H. Sakai, A. Tamii, K. Sekiguchi, K. Yako, S. Sakoda, H. Kato, M. Hatano, Y. Maeda, T. Saito, N. Uchigashima, N. Sakamoto, Y. Satou, T. Ohnishi, T. Wakui, T. Wakasa, K. Itoh

    Physics Letters B   533   1 - 7   2002.3

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    3He(d, p)4He Reaction at Intermediate Energies and Impulse Picture of the (d, p) Reactions

  • Complete set of precise deuteron analyzing powers at intermediate energies Comparison with modern nuclear force predictions Reviewed

    Physical Review C - Nuclear Physics   65 ( 3 )   340031 - 3400316   2002.3

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    DOI: 10.1103/PhysRevC.65.034003

  • Cross sections and polarization observables for the Ca-40(p,n) reaction at 345 MeV and multistep contributions in the continuum Reviewed International journal

    Wakasa T, Hatanaka K, Sakai H, Greenfield MB, Kamiya J, Ogata K, Okamura H, Sekiguchi K, Suda K, Tamii A, Yako K

    PHYSICAL REVIEW C   2002.3

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    Cross sections and polarization observables for the Ca-40(p,n) reaction at 345 MeV and multistep contributions in the continuum

  • C-12,C-13(rho, pi(-)) O-13,14(g.s.) reactions in the Delta(1232) resonance region Reviewed International journal

    Hatanaka K, Kamiya J, Hirooka D, Maeda Y, Maeda Y, Noro T, Obayashi E, Okamura H, Sakai H, Tamii A, Tamura K, Wakasa T, Yako K, Yoshida HP

    PHYSICAL REVIEW C   2002.1

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    C-12,C-13(rho, pi(-)) O-13,14(g.s.) reactions in the Delta(1232) resonance region

  • C-12,C-13(rho, pi(-)) O-13,14(g.s.) reactions in the Delta(1232) resonance region Reviewed

    K Hatanaka, J Kamiya, D Hirooka, Y Maeda, Y Maeda, T Noro, E Obayashi, H Okamura, H Sakai, A Tamii, K Tamura, T Wakasa, K Yako, HP Yoshida

    PHYSICAL REVIEW C   65 ( 1 )   2002.1

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    DOI: 10.1103/PhysRevC.65.014609

  • [Formula Presented] reactions in the [Formula Presented] resonance region Reviewed

    K. Hatanaka, J. Kamiya, D. Hirooka, Y. Maeda, Y. Maeda, T. Noro, E. Obayashi, H. Okamura, H. Sakai, A. Tamii, K. Tamura, Tomotsugu Wakasa, K. Yako, H. P. Yoshida

    Physical Review C - Nuclear Physics   65 ( 1 )   2002.1

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    DOI: 10.1103/PhysRevC.65.014609

  • Search for narrow dibaryon resonances by the [Formula Presented] and [Formula Presented] reactions Reviewed

    A. Tamii, K. Hatanaka, M. Hatano, D. Hirooka, J. Kamiya, H. Kato, Y. Maeda, T. Saito, H. Sakai, S. Sakoda, K. Sekiguchi, N. Uchigashima, T. Uesaka, Tomotsugu Wakasa, K. Yako

    Physical Review C - Nuclear Physics   65 ( 4 )   2002.1

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    DOI: 10.1103/PhysRevC.65.047001

  • Polarization transfer in the [Formula Presented] reaction at forward angles and structure of the spin-dipole resonances Reviewed

    T. Kawabata, T. Ishikawa, M. Itoh, M. Nakamura, H. Sakaguchi, H. Takeda, T. Taki, M. Uchida, Y. Yasuda, M. Yosoi, H. Akimune, K. Yamasaki, G. P.A. Berg, H. Fujimura, K. Hara, K. Hatanaka, J. Kamiya, T. Noro, E. Obayashi, T. Wakasa, H. P. Yoshida, B. A. Brown, H. Fujita, Y. Fujita, Y. Shimbara, H. Ueno, M. Fujiwara, K. Hosono, A. Tamii, H. Toyokawa

    Physical Review C - Nuclear Physics   65 ( 6 )   2002.1

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    DOI: 10.1103/PhysRevC.65.064316

  • Measurement of analyzing powers of [Formula Presented] and [Formula Presented] produced on a hydrogen and a carbon target with a [Formula Presented] incident polarized proton beam Reviewed

    Physical Review D - Particles, Fields, Gravitation and Cosmology   65 ( 9 )   2002.1

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    DOI: 10.1103/PhysRevD.65.092008

  • Cross sections and polarization observables for the 40Ca(p,n) reaction at 345 MeV and multistep contributions in the continuum Reviewed

    T. Wakasa, K. Hatanaka, H. Sakai, H. Sakai, M. B. Greenfield, J. Kamiya, K. Ogata, H. Okamura, K. Sekiguchi, K. Suda, A. Tamii, K. Yako

    Physical Review C - Nuclear Physics   65 ( 3 )   346151 - 346158   2002.1

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    DOI: 10.1103/PhysRevC.65.034615

  • 12,13C(p, π-) 13,14Og.s. reactions in the Δ1232 resonance region Reviewed

    65 ( 1 )   146091 - 146095   2002.1

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    The role of the Δ resonance has been discussed for the 12,13,14C(p, π-)13,14,15Og.s. reactions both experimentally and theoretically. Recent calculations suggested resonance effects in the energy dependence of the differential cross section that seem to contradict existing data. Since the available data points are limited, it is important to measure the energy dependence of the differential cross sections and the analyzing powers in order to better understand the still unclear reaction mechanism of the ground state (p, π-) reactions. In the present paper, angular distributions of the differential cross sections and the analyzing powers were measured for 12,13C(p, π±) reactions at incident energies of 250, 300, and 350 MeV. Experimental results for the 12C(p, π-)13Og.s. reaction are compared with full-range distorted-wave Born approximation calculations.

  • Measurement of single and double spin-flip probabilities in inelastic deuteron scattering on C-12 at 270 MeV Invited Reviewed International journal

    Satou Y, Ishida S, Sakai H, Okamura H, Otsu H, Sakamoto N, Uesaka T, Wakasa T, Ohnishi T, Sekiguchi K, Yako K, Ichihara T, Niizeki T, Itoh KS, Nishimori N

    PHYSICS LETTERS B   2001.11

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    Measurement of single and double spin-flip probabilities in inelastic deuteron scattering on C-12 at 270 MeV

  • Measurement of single and double spin-flip probabilities in inelastic deuteron scattering on C-12 at 270 MeV Reviewed

    Y Satou, S Ishida, H Sakai, H Okamura, H Otsu, N Sakamoto, T Uesaka, T Wakasa, T Ohnishi, K Sekiguchi, K Yako, T Ichihara, T Niizeki, KS Itoh, N Nishimori

    PHYSICS LETTERS B   521 ( 3-4 )   153 - 157   2001.11

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  • Measurement of single and double spin-flip probabilities in inelastic deuteron scattering on 12C at 270 MeV Reviewed

    Y. Satou, S. Ishida, H. Sakai, H. Okamura, H. Otsu, N. Sakamoto, T. Uesaka, T. Wakasa, T. Ohnishi, K. Sekiguchi, K. Yako, T. Ichihara, T. Niizeki, K. S. Itoh, N. Nishimori

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   521 ( 3-4 )   153 - 157   2001.11

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    DOI: 10.1016/S0370-2693(01)01202-3

  • Attenuation of neutrons in the atmosphere and a thick carbon target Reviewed

    T Koi, Y Muraki, K Masuda, Y Matsubara, T Sako, T Murata, H Tsuchiya, S Shibata, Y Munakata, K Hatanaka, T Wakasa, H Sakai

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   469 ( 1 )   63 - 69   2001.8

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    DOI: 10.1016/S0168-9002(01)00289-3, 10.1016/s0168-9002(01)00289-3

  • d→p and n→d scatterings at intermediate energy and three-nucleon force effects Reviewed

    H. Sakai, Y. Maeda, K. Sekiguchi, W. Glöckle, M. B. Greenfield, K. Hatanaka, M. Hatano, D. Hirooka, H. Kamada, J. Kamiya, H. Kato, T. Ohnishi, H. Okamura, J. Rapaport, T. Saito, N. Sakamoto, S. Sakoda, Y. Satou, K. Suda, A. Tamii, N. Uchigashima, T. Uesaka, Tomotsugu Wakasa, H. Witała, K. Yako

    689 ( 1-2 )   353 - 356   2001.6

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    Precise data on cross sections, analyzing powers and polarization transfer coefficients are measured for the dp elastic scattering at 270 MeV (135 MeV/nucleon) and compared to Faddeev calculations assuming the nd scattering with modern nucleon-nucleon (NN) forces including the 2π exchange Tucson-Melbourne (TM) three-nucleon (3N) force. Excellent fits are obtained for the cross sections and vector analyzing powers when the 3N force is included, while the fits are deteriorated for the tensor analyzing powers if the 3N force is included. A moderate fit is obtained for the polarization transfer coefficients. Based on theses results, one can conclude that the size of amplitudes of the TM-SN force may be adequate but the spin dependent part may be deficient. The cross sections and the vector analyzing powers for the nd elastic scattering at 250 MeV are measured for the first time. Backward cross sections are underestimated by the NN+3N force Faddeev calculations. This difference might be attributed to relativistic effects.

  • (d)over-right-arrow-p and (n)over-right-arrow-d scatterings at intermediate energy and three-nucleon force effects Reviewed

    H Sakai, Y Maeda, K Sekiguchi, W Glockle, MB Greenfield, K Hatanaka, M Hatano, D Hirooka, H Kamada, J Kamiya, H Kato, T Ohnishi, H Okamura, J Rapaport, T Saito, N Sakamoto, S Sakoda, Y Satou, K Suda, A Tamii, N Uchigashima, T Uesaka, T Wakasa, H Witala, K Yako

    NUCLEAR PHYSICS A   689 ( 1-2 )   353C - 356C   2001.6

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  • Detection efficiency of a neutron monitor calibrated by an accelerator neutron beam Reviewed International journal

    Shibata S, Munakata Y, Tatsuoka R, Muraki Y, Masuda K, Matsubara Y, Koi T, Sako T, Murata T, Tsuchiya H, Hatanaka K, Wakasa T, Sakai H, Ishida Y

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   2001.5

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    Detection efficiency of a neutron monitor calibrated by an accelerator neutron beam

  • Detection efficiency of a neutron monitor calibrated by an accelerator neutron beam Reviewed

    S Shibata, Y Munakata, R Tatsuoka, Y Muraki, K Masuda, Y Matsubara, T Koi, T Sako, T Murata, H Tsuchiya, K Hatanaka, T Wakasa, H Sakai, Y Ishida

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   463 ( 1-2 )   316 - 320   2001.5

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    DOI: 10.1016/S0168-9002(01)00280-7, 10.1016/s0168-9002(01)00280-7

  • Detection efficiency of a new type of solar neutron detector calibrated by an accelerator neutron beam Reviewed

    H Tsuchiya, Y Muraki, K Masuda, Y Matsubara, T Koi, T Sako, S Ohno, T Hoshida, S Shibata, Y Munakata, K Hatanaka, T Wakasa, H Sakai

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   463 ( 1-2 )   183 - 193   2001.5

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    DOI: 10.1016/S0168-9002(01)00290-X, 10.1016/s0168-9002(01)00290-x

  • The RCNP (n,p) facility Invited Reviewed International journal

    Yako K, Sakai H, Tamii A, Sekiguchi K, Sakoda S, Maeda Y, Hatano M, Kato H, Okamura H, Suda K, Greenfield MB, Wakasa T, Kamiya J, Hirooka D, Hatanaka K

    NUCLEAR PHYSICS A   2001.5

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    The RCNP (n,p) facility

  • Polarization transfer measurements for dp scattering at 270 MeV Invited Reviewed International journal

    Sakai H, Sekiguchi K, Kato H, Hatano M, Maeda Y, Ohnishi T, Okamura H, Sakamoto N, Sakoda S, Satou Y, Suda K, Tamii A, Uesaka T, Wakasa T, Yako K

    NUCLEAR PHYSICS A   2001.5

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    Polarization transfer measurements for dp scattering at 270 MeV

  • Measurement of cross sections and analyzing powers for the d-p elastic scattering at intermediate energies Invited Reviewed International journal

    Sekiguchi K, Sakai H, Okamura H, Sakamoto N, Tamii A, Uesaka T, Wakasa T, Satou Y, Ohnishi T, Yako K, Sakoda S, Suda K, Kato H, Maeda Y, Hatano M, Nishikawa J

    NUCLEAR PHYSICS A   2001.5

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    Measurement of cross sections and analyzing powers for the d-p elastic scattering at intermediate energies

  • He-3(d, p)He-4 reaction at intermediate energies Invited Reviewed International journal

    Uesaka T, Sakai H, Okamura H, Tamii A, Satou Y, Ohnishi T, Sekiguchi K, Yako K, Suda K, Sakoda S, Nishikawa J, Hatano M, Kato H, Maeda Y, Sakamoto N, Wakasa T, Itoh K

    NUCLEAR PHYSICS A   2001.5

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    He-3(d, p)He-4 reaction at intermediate energies

  • Detection efficiency of a new type of solar neutron detector calibrated by an accelerator neutron beam Reviewed International journal

    Tsuchiya H, Muraki Y, Masuda K, Matsubara Y, Koi T, Sako T, Ohno S, Hoshida T, Shibata S, Munakata Y, Hatanaka K, Wakasa T, Sakai H

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   2001.5

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    Detection efficiency of a new type of solar neutron detector calibrated by an accelerator neutron beam

  • Gamow-Teller strength in the continuum and quenching problem Invited Reviewed International journal

    Wakasa T, Hatanaka K, Sakai H, Fujita S, Nonaka T, Yako K, Sekiguchi K, Okamura H, Uesaka T, Otsu H, Ishida S, Sakamoto N, Satou Y, Ohnishi T, Greenfield MB

    NUCLEAR PHYSICS A   2001.4

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    Gamow-Teller strength in the continuum and quenching problem

  • Gamow-Teller strength in the continuum and quenching problem Reviewed

    T Wakasa, K Hatanaka, H Sakai, S Fujita, T Nonaka, K Yako, K Sekiguchi, H Okamura, T Uesaka, H Otsu, S Ishida, N Sakamoto, Y Satou, T Ohnishi, MB Greenfield

    NUCLEAR PHYSICS A   687 ( 1-2 )   26C - 31C   2001.4

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  • Isospin symmetry-structure study at new high-resolution course of RCNP Reviewed

    Nuclear Physics A   687 ( 1-2 )   311 - 320   2001.4

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    DOI: 10.1016/S0375-9474(01)00637-6

  • Gamow-Teller strength in the continuum and quenching problem Reviewed

    Tomotsugu Wakasa, K. Hatanaka, H. Sakai, S. Fujita, T. Nonaka, K. Yako, K. Sekiguchi, H. Okamura, T. Uesaka, H. Otsu, S. Ishida, N. Sakamoto, Y. Satou, T. Ohnishi, M. B. Greenfield

    Nuclear Physics A   687 ( 1-2 )   26 - 31   2001.4

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    DOI: 10.1016/S0375-9474(01)00596-6

  • Isospin symmetry-structure study at new high-resolution course of RCNP Invited Reviewed International journal

    Fujita Y, Adachi T, Akimune H, Bacher AD, Berg GPA, Black T, Daito I, Foster CC, Fujimura H, Fujita H, Fujiwara M, Hara K, Harada K, Harakeh MN, Hatanaka K, Inomata T, Janecke J, Kamiya J, Kanzaki Y, Katori K, Kawabata T, Lozowski W, Nagayama K, Noro T, R

    NUCLEAR PHYSICS A   2001.4

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    Isospin symmetry-structure study at new high-resolution course of RCNP

  • 3He(d→,p)4He reaction at intermediate energies Reviewed

    684 ( 1-4 )   606 - 608   2001.3

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    DOI: 10.1016/S0375-9474(01)00451-1

  • Polarization transfer measurements for dp scattering at 270 MeV Reviewed

    H Sakai, K Sekiguchi, H Kato, M Hatano, Y Maeda, T Ohnishi, H Okamura, N Sakamoto, S Sakoda, Y Satou, K Suda, A Tamii, T Uesaka, T Wakasa, K Yako

    NUCLEAR PHYSICS A   684   577C - 579C   2001.3

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  • He-3(d, p)He-4 reaction at intermediate energies Reviewed

    T Uesaka, H Sakai, H Okamura, A Tamii, Y Satou, T Ohnishi, K Sekiguchi, K Yako, K Suda, S Sakoda, J Nishikawa, M Hatano, H Kato, Y Maeda, N Sakamoto, T Wakasa, K Itoh

    NUCLEAR PHYSICS A   684   606C - 608C   2001.3

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  • The RCNP (n,p) facility Reviewed

    K Yako, H Sakai, A Tamii, K Sekiguchi, S Sakoda, Y Maeda, M Hatano, H Kato, H Okamura, K Suda, MB Greenfield, T Wakasa, J Kamiya, D Hirooka, K Hatanaka

    NUCLEAR PHYSICS A   684   563C - 565C   2001.3

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  • Measurement of cross sections and analyzing powers for the d-p elastic scattering at intermediate energies Reviewed

    K Sekiguchi, H Sakai, H Okamura, N Sakamoto, A Tamii, T Uesaka, T Wakasa, Y Satou, T Ohnishi, K Yako, S Sakoda, K Suda, H Kato, Y Maeda, M Hatano, J Nishikawa

    NUCLEAR PHYSICS A   684   574C - 576C   2001.3

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  • The RCNP (n,p) facility Reviewed

    K. Yako, H. Sakai, A. Tamii, K. Sekiguchi, S. Sakoda, Y. Maeda, M. Hatano, H. Kato, H. Okamura, K. Suda, M. B. Greenfield, T. Wakasa, J. Kamiya, D. Hirooka, K. Hatanaka

    Nuclear Physics A   684 ( 1-4 )   563 - 565   2001.3

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    DOI: 10.1016/S0375-9474(01)00396-7

  • Polarization transfer measurements for dp scattering at 270 MeV Reviewed

    684 ( 1-4 )   577 - 579   2001.3

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    DOI: 10.1016/S0375-9474(01)00374-8

  • Measurement of cross sections and analyzing powers for d–p elastic scattering at intermediate energies Reviewed

    684 ( 1-4 )   574 - 576   2001.3

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    DOI: 10.1016/S0375-9474(01)00371-2

  • Thin ice target for O-16(p,p ') experiment Reviewed International journal

    Kawabata T, Akimune H, Fujimura H, Fujita H, Fujita Y, Fujiwara M, Hara K, Hatanaka K, Hosono K, Ishikawa T, Itoh M, Kamiya J, Nakamura M, Noro T, Obayashi E, Sakaguchi H, Shimbara Y, Takeda H, Taki T, Tamii A, Toyokawa H, Tsukahara N, Uchida M, Ueno H, W

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   2001.2

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    Thin ice target for O-16(p,p ') experiment

  • Thin ice target for 16O(p,p′) experiment Reviewed

    459 ( 1-2 )   171 - 176   2001.2

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    A method to prepare a windowless, self-supporting and low-cost ice target is described. The produced target was successfully used to measure the spectra of inelastic proton scattering from 16O. An ice target of about 30 mg/cm2 worked stably. The target thickness was monitored for 7 hours by measuring p+p elastic scattering and no meaningful variation of the thickness was observed. No obvious effect of contaminations due to the congelation of residual gases on the target was detected. Since a thin ice target was made, measurements of charged decay particles in coincidence with inelastically scattered particles are possible.

    DOI: 10.1016/S0168-9002(00)00992-X

  • A model for the He-3((d)over-right-arrow,p)He-4 reaction at intermediate energies Reviewed International journal

    Kamada H, Uesaka T, Glockle W, Sakai H, Gojuki S, Itoh K, Ohnishi T, Okamura H, Sakamoto N, Sakoda S, Satou Y, Sekiguchi K, Suda K, Tamii A, Wakasa T, Witala H, Yako K

    PROGRESS OF THEORETICAL PHYSICS   2000.9

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    A model for the He-3((d)over-right-arrow,p)He-4 reaction at intermediate energies

  • A model for the He-3((d)over-right-arrow,p)He-4 reaction at intermediate energies Reviewed

    H Kamada, T Uesaka, W Glockle, H Sakai, S Gojuki, K Itoh, T Ohnishi, H Okamura, N Sakamoto, S Sakoda, Y Satou, K Sekiguchi, K Suda, A Tamii, T Wakasa, H Witala, K Yako

    PROGRESS OF THEORETICAL PHYSICS   104 ( 3 )   703 - 708   2000.9

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    DOI: 10.1143/PTP.104.703

  • A model for the 3He(d, p)4He reaction at intermediate energies Reviewed

    Hiroyuki Kamada, Tomohiro Uesaka, Walter Glöckle, Hideyuki Sakai, Shuichi Gojuki, Kazuya Itoh, Tetsuya Ohnishi, Hiroyuki Okamura, Naruhiko Sakamoto, Seitaro Sakoda, Yoshiteru Satou, Kimiko Sekiguchi, Kenji Suda, Atsushi Tamii, Tomotsugu Wakasa, Henryk Witała, Kentaro Yako

    104 ( 3 )   703 - 708   2000.9

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    Polarization correlation coefficients have been measured at RIKEN for the 3He(d, p)4He reaction at intermediate energies (Ed = 270 MeV). We propose a model for the (d, p) reaction mechanism using the pd elastic scattering amplitude, which is rigorously determined with a Faddeev calculation and using modern NN forces. Our theoretical predictions for the deuteron polarization observables Ay, Ayy, Axx and Axz at Ed = 140, 200 and 270 MeV are given. The Ay observables agree qualitatively in shape with the new experimental data for the reaction 3He(d, p)4He.

    DOI: 10.1143/PTP.104.703

  • 25pYR-3 250MeV偏極中性子 : 重陽子弾性散乱における微分断面積及び偏極分解能の測定

    前田 幸重, 酒井 英行, 畑中 吉治, 岡村 弘之, 民井 淳, 若狭 智嗣, 矢向 謙太郎, 関口 仁子, 迫田 誠太郎, 神谷 潤一郎, 須田 健嗣, 加藤 裕充, 波田野 道夫, 広岡 大輔, Greenfield M. B., Rapaport J.

    日本物理学会講演概要集   55 ( 2 )   53 - 53   2000.9

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  • Precise measurement of dp elastic scattering at 270 MeV and three-nucleon force effects Reviewed International journal

    Sakai H, Sekiguchi K, Witala H, Glockle W, Hatano M, Kamada H, Kato H, Maeda Y, Nogga A, Ohnishi T, Okamura H, Sakamoto N, Sakoda S, Satou Y, Suda K, Tamii A, Uesaka T, Wakasa T, Yako K

    PHYSICAL REVIEW LETTERS   2000.6

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    Precise measurement of dp elastic scattering at 270 MeV and three-nucleon force effects

  • Reaction mechanism and characteristics of T-20 in d+He-3 backward elastic scattering at intermediate energies Reviewed International journal

    Tanifuji M, Ishikawa S, Iseri Y, Uesaka T, Sakamoto N, Satou Y, Itoh K, Sakai H, Tamii A, Ohnishi T, Sekiguchi K, Yako K, Sakoda S, Okamura H, Suda K, Wakasa T

    PHYSICAL REVIEW C   2000.2

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    Reaction mechanism and characteristics of T-20 in d+He-3 backward elastic scattering at intermediate energies

  • An Ice Target System for 16O(p,p') Measurement

    T. Kawabata, H. Akimune, H. Fujimura, H. Fujita, Y. Fujita, M. Fujiwara, K. Hara, K. Hatanaka, K. Hososno, T. Ishikawa, M. Itoh, M. Nakamura, T. Noro, E. Obayashi, H. Sakaguchi, Y. Shimbara, H. Takeda, T. Taki, A. Tamii, H. Toyokawa, N. Tsukahara, M. Uchida, H. Ueno, T. Wakasa, K. Yamasaki, Y. Yasuda, H. P. Yoshida, M. Yosoi

    Proceedings of Workshop on Frontiers in Nuclear Physics   131 - 141   2000.2

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    An Ice Target System for 16O(p,p') Measurement

  • Precise measurement of dp elastic scattering at 270 mev and three-nucleon force effects Reviewed

    Physical Review Letters   84 ( 23 )   5288 - 5291   2000.1

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    DOI: 10.1103/PhysRevLett.84.5288

  • Reaction mechanism and characteristics of [Formula Presented] in [Formula Presented] backward elastic scattering at intermediate energies Reviewed

    M. Tanifuji, S. Ishikawa, Y. Iseri, T. Uesaka, N. Sakamoto, Y. Satou, K. Itoh, H. Sakai, A. Tamii, T. Ohnishi, K. Sekiguchi, K. Yako, S. Sakoda, H. Okamura, K. Suda, T. Wakasa

    Physical Review C - Nuclear Physics   61 ( 2 )   2000.1

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    DOI: 10.1103/PhysRevC.61.024602

  • Reaction mechanism and characteristics of T20 in d+ 3He backward elastic scattering at intermediate energies Reviewed

    M. Tanifuji, S. Ishikawa, Y. Iseri, T. Uesaka, N. Sakamoto, Y. Satou, K. Itoh, H. Sakai, A. Tamii, T. Ohnishi, K. Sekiguchi, K. Yako, S. Sakoda, H. Okamura, K. Suda, Tomotsugu Wakasa

    Physical Review C - Nuclear Physics   61 ( 2 )   246021 - 246028   2000.1

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  • Polarization correlation coefficient for the (3)(H)over-right-arrowe((d)over-right-arrow,p) He-4 reaction Reviewed International journal

    Uesaka T, Sakai H, Okamura H, Ohnishi T, Satou Y, Ishida S, Sakamoto N, Otsu H, Wakasa T, Itoh K, Sekiguchi K, Wakui T

    PHYSICS LETTERS B   1999.11

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    Polarization correlation coefficient for the (3)(H)over-right-arrowe((d)over-right-arrow,p) He-4 reaction

  • Polarization Correlation Coefficient for the He(d,p) He Reaction Reviewed

    T. Uesaka, H. Sakai, H. Okamura, T. Ohnishi, Y. Satou, S. Ishida, N. Sakamoto, H. Otsu, T. Wakasa, K. Itoh, K. Sekiguchi, T. Wakui

    Physics Letters B   467   199 - 204   1999.10

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    Polarization Correlation Coefficient for the He(d,p) He Reaction

  • Large analyzing power in inclusive pi(+/-) production at high x(F) with a 22-GeV/c polarized proton beam Reviewed International journal

    Krueger K, Allgower C, Kasprzyk T, Spinka H, Underwood D, Yokosawa A, Bunce G, Huang H, Makdisi Y, Roser T, Syphers M, Belikov NI, Derevschikov AA, Matulenko YA, Nogach LV, Nurushev SB, Pavlinov AI, Vasiliev AN, Bai M, Lee SY, Goto Y, Hayashi N, Ichihara

    PHYSICS LETTERS B   1999.7

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    Large analyzing power in inclusive pi(+/-) production at high x(F) with a 22-GeV/c polarized proton beam

  • Gamow-Teller strength in the continuum and quenching problem Reviewed

    H. Sakai, T. Wakasa, H. Okamura, H. Otsu, T. Uesaka, N. Sakamoto, Y. Satou, K. Hatanaka

    NUCLEAR PHYSICS A   654 ( 1 )   731C - 734C   1999.7

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  • Gamow-Teller strength in the continuum and quenching problem Reviewed

    H. Sakai, Tomotsugu Wakasa, H. Okamura, H. Otsu, T. Uesaka, N. Sakamoto, Y. Satou, K. Hatanaka

    Nuclear Physics A   654 ( 1 SUPPL. 1 )   731c - 734c   1999.7

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    DOI: 10.1016/S0375-9474(00)88537-1

  • Polarization transfer and spin response functions in quasielastic ((p)over-right-arrow,(n)over-right-arrow) reactions at 346 MeV Reviewed International journal

    Wakasa T, Sakai H, Hatanaka K, Okamura H, Otsu H, Fujita S, Nonaka T, Uesaka T, Satou Y, Ohnishi T, Yokoyama G, Ishida S, Sakamoto N, Greenfield MB, Ichimura M, Kawahigashi K

    PHYSICAL REVIEW C   1999.6

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    Polarization transfer and spin response functions in quasielastic ((p)over-right-arrow,(n)over-right-arrow) reactions at 346 MeV

  • Polarization transfer and spin response functions in quasielastic ((p)over-right-arrow,(n)over-right-arrow) reactions at 346 MeV Reviewed

    T Wakasa, H Sakai, K Hatanaka, H Okamura, H Otsu, S Fujita, T Nonaka, T Uesaka, Y Satou, T Ohnishi, G Yokoyama, S Ishida, N Sakamoto, MB Greenfield, M Ichimura, K Kawahigashi

    PHYSICAL REVIEW C   59 ( 6 )   3177 - 3195   1999.6

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  • Study of isoscalar spin strength via the C-12((d)over-right-arrow,(d)over-right-arrow ') reaction Invited Reviewed International journal

    Satou Y, Ishida S, Sakai H, Okamura H, Otsu H, Sakamoto N, Uesaka T, Wakasa T, Ohnishi T, Nonaka T, Yokoyama G, Ichihara T, Niizeki T, Nishimori N

    NUCLEAR PHYSICS A   1999.5

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    Study of isoscalar spin strength via the C-12((d)over-right-arrow,(d)over-right-arrow ') reaction

  • Gamow-Teller strength in the continuum and quenching problem Reviewed

    H. Sakai, Tomotsugu Wakasa, H. Okamura, T. Nonaka, T. Ohnishi, K. Yako, K. Sekiguchi, S. Fujita, Y. Satou, H. Otsu, T. Uesaka, S. Ishida, N. Sakamoto, M. B. Greenfield, K. Hatanaka

    Nuclear Physics A   649 ( 1-4 )   251 - 259   1999.3

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    DOI: 10.1016/S0375-9474(99)00069-X

  • Study of isoscalar spin strength via the C-12((d)over-right-arrow,(d)over-right-arrow ') reaction Reviewed

    Y Satou, S Ishida, H Sakai, H Okamura, H Otsu, N Sakamoto, T Uesaka, T Wakasa, T Ohnishi, T Nonaka, G Yokoyama, T Ichihara, T Niizeki, N Nishimori

    NUCLEAR PHYSICS A   649   275C - 278C   1999.3

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  • Gamow-Teller strength in the continuum and quenching problem Reviewed

    H Sakai, T Wakasa, H Okamura, T Nonaka, T Ohnishi, K Yako, K Sekiguchi, S Fujita, Y Satou, H Otsu, T Uesaka, S Ishida, N Sakamoto, MB Greenfield, K Hatanaka

    NUCLEAR PHYSICS A   649   251C - 259C   1999.3

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  • Study of isoscalar spin strength via the 12 C(d→, d′→) reaction Reviewed

    649 ( 1-4 )   275 - 278   1999.3

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    The spin-flip probability S
    1
    and the double-spin-flip probability S
    2
    for the
    12
    C(d→, d′→) reaction at Ε
    d
    =270 MeV have been measured at θ
    lab
    between 2.5° and 7.5° and for excitation energies up to 25 MeV by using a vector-and-tensor Deuteron POLarimeter DPOL. Large S
    1
    values are observed for the transitions to the isoscalar spin-flip states, such as the 12.71 MeV 1
    +
    state. S
    2
    has values close to zero for all the measured excitation energy region.

  • Large analyzing power in inclusive π ± production at high X F with a 22-GeV / c polarized proton beam Reviewed

    459 ( 1-3 )   412 - 416   1999.1

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    The analyzing power, AN, in inclusive charged-pion production has been measured using a ∼ 22-GeV/c transversely-polarized proton beam on a carbon target. A large AN was found for xF > 0.5 and for 0.6 <PT 1.2 GeV/c, with similar magnitudes and opposite sign for π+ and π-. This mirror behavior and the magnitudes are similar to π± production from 200-GeV/c polarized protons on a hydrogen target. The analyzing power for inclusive proton production has also been measured and is consistent with zero.

    DOI: 10.1016/S0370-2693(99)00677-2

  • Polarization transfer and spin response functions in quasielastic [Formula Presented] reactions at 346 MeV Reviewed

    Tomotsugu Wakasa, H. Sakai, K. Hatanaka, H. Okamura, H. Otsu, S. Fujita, T. Nonaka, T. Uesaka, Y. Satou, T. Ohnishi, G. Yokoyama, S. Ishida, N. Sakamoto, M. B. Greenfield, M. Ichimura, K. Kawahigashi

    Physical Review C - Nuclear Physics   59 ( 6 )   3177 - 3195   1999.1

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    DOI: 10.1103/PhysRevC.59.3177

  • Polarization correlation coefficient for the 3He(d,p) 4He reaction Reviewed

    467 ( 3-4 )   199 - 204   1999.1

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    A new approach to study the high momentum component of deuteron D-state wave function by measuring the polarization correlation coefficient, C// [= 1 + 1/4(Ayy + Axx) + 3/4(Cy,y + Cx,x)], for the 3He(d,p)4He reaction is proposed. The first measurement of C// has been carried out at Ed = 270 MeV by using a newly constructed spin-exchange-type polarized 3He target. The obtained value is 0.223 ± 0.044(statistical) ± 0.037(systematic). DWBA calculations are unable to reproduce the present results. Each component of C // is compared with data for the d+p backward scattering and the deuteron inclusive breakup. A similarity in polarization observables is found among these reactions.

    DOI: 10.1016/S0370-2693(99)01187-9

  • Performance of the neutron polarimeter NPOL2 for (p→,n→) polarization transfer measurements Reviewed

    404 ( 2-3 )   355 - 372   1998.12

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    A high performance neutron polarimeter NPOL2 has been constructed to measure polarization transfer observables Dij for neutron kinetic energies of Tn = 150-400 MeV. The NPOL2 system consists of 6 planes of two-dimensional position-sensitive neutron detectors with a size of 1 × 1 × 0.1 m3. Neutron polarization is determined from the azimuthal distribution of the elastic n→ + p scattering in the scintillator material. The effective analyzing powers (Ayeff) of NPOL2 have been calibrated by using the polarized neutrons from the 0° 2H(p→,n→)pp reaction at Tp = 146, 228, 296, 346 and 392 MeV as well as by using the polarized neutrons from the 0° 6Li(p→,n→)6Be(g.s.) reaction at Tp = 228 MeV. The Ay;eff values of NPOL2 have reasonable values, typically 0.223 ± 0.012 and 0.132 ± 0.004 for (n→,n) and (n→,p) channels, respectively, at Tn = 291 MeV. The figure-of-merit value defined as εD.S.(Ay;eff)2 is over 4 × 10-4 for the wide neutron kinetic energy region of Tn = 200-400 MeV, where εD.S is the double scattering efficiency.

    DOI: 10.1016/S0168-9002(97)01149-2

  • Measurement of a complete set of analyzing powers for deuteron elastic scattering from Ca-40 at 270 MeV and an investigation of tensor potentials Reviewed International journal

    Ohnishi T, Sakai H, Okamura H, Ishida S, Otsu H, Sakamoto N, Uesaka T, Wakasa T, Satou Y, Fujita S, Nonaka T, Stephenson EJ

    PHYSICS LETTERS B   1998.10

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    Measurement of a complete set of analyzing powers for deuteron elastic scattering from Ca-40 at 270 MeV and an investigation of tensor potentials

  • Measurement of a complete set of analyzing powers for deuteron elastic scattering from Ca-40 at 270 MeV and an investigation of tensor potentials Reviewed

    T Ohnishi, H Sakai, H Okamura, S Ishida, H Otsu, N Sakamoto, T Uesaka, T Wakasa, Y Satou, S Fujita, T Nonaka, EJ Stephenson

    PHYSICS LETTERS B   438 ( 1-2 )   27 - 34   1998.10

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  • Measurement of a complete set of analyzing powers for deuteron elastic scattering from 40Ca at 270 MeV and an investigation of tensor potentials Reviewed

    T. Ohnishi, H. Sakai, H. Okamura, S. Ishida, H. Otsu, N. Sakamoto, T. Uesaka, Tomotsugu Wakasa, Y. Satou, S. Fujita, T. Nonaka, E. J. Stephenson

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   438 ( 1-2 )   27 - 34   1998.10

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    DOI: 10.1016/S0370-2693(98)01013-2

  • Mechanism of the forward-angle (d,pn) reaction at intermediate energies Reviewed International journal

    Okamura H, Ishida S, Sakamoto N, Otsu H, Uesaka T, Wakasa T, Sakai H, Niizeki T, Toyokawa H, Tajima Y, Ohnuma H, Yosoi M, Hatanaka K, Ichihara T

    PHYSICAL REVIEW C   1998.10

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    Mechanism of the forward-angle (d,pn) reaction at intermediate energies

  • Mechanism of the forward-angle (d,pn) reaction at intermediate energies Reviewed

    H Okamura, S Ishida, N Sakamoto, H Otsu, T Uesaka, T Wakasa, H Sakai, T Niizeki, H Toyokawa, Y Tajima, H Ohnuma, M Yosoi, K Hatanaka, T Ichihara

    PHYSICAL REVIEW C   58 ( 4 )   2180 - 2191   1998.10

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    DOI: 10.1103/PhysRevC.58.2180

  • Cross sections and complete polarization transfer measurements for the H-2((p)over-right-arrow,(p)over-right-arrow)pp reaction at 346 MeV Invited Reviewed International journal

    Sakai H, Wakasa T, Nonaka T, Okamura H, Otsu H, Fujita S, Ishida S, Sakamoto N, Uesaka T, Satou Y, Ohnishi T, Yokoyama G, Ichimura M, Greenfield MB, Hatanaka K

    NUCLEAR PHYSICS A   1998.5

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    Cross sections and complete polarization transfer measurements for the H-2((p)over-right-arrow,(p)over-right-arrow)pp reaction at 346 MeV

  • Strength observed in Gamow-Teller resonance plus continuum in the Al-27((p)over-right-arrow,(n)over-right-arrow) reaction at 295 MeV Reviewed

    T Wakasa, H Sakai, H Okamura, H Otsu, S Fujita, S Ishida, N Sakamoto, T Uesaka, Y Satou, MB Greenfield, K Hatanaka

    PHYSICS LETTERS B   426 ( 3-4 )   257 - 262   1998.5

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  • Strength observed in Gamow-Teller resonance plus continuum in the 27Al(p, n) reaction at 295 MeV Reviewed

    426 ( 3-4 )   257 - 262   1998.5

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    The double differential cross sections for θlab between 0.0° and 14.7° and the polarization transfer coefficient DNN(0°) for the 27Al(p, n) reaction have been measured at a bombarding energy of 295 MeV. A multipole decomposition technique is applied for the cross section data to extract L = 0, 1, 2, and 3 contributions. The Gamow-Teller (GT) strength B(GT) deduced from the L = 0 contribution is compared with the B(GT) values calculated in a full sd shell-model space. The sum of B(GT) values up to 20 MeV excitation is Sβ = 4.0 ± 0.1 ± 0.1. A fairly large L = 0 contribution is observed in the continuum region up to 50 MeV, which could be in part ascribed to the quenched GT strength. A limit on the effect that the Δ(1232)-isobar nucleon-hole admixture has upon the GT strength is estimated.

    DOI: 10.1016/S0370-2693(98)00320-7

  • Detector system of the first focal plane of the spectrometer SMART at RIKEN Reviewed International journal

    Okamura H, Ishida S, Sakamoto N, Otsu H, Uesaka T, Wakasa T, Satou Y, Sakai H, Niizeki T, Ohnuma H, Ichihara T

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   1998.5

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    Detector system of the first focal plane of the spectrometer SMART at RIKEN

  • Coulomb breakup of light composite nuclei Reviewed International journal

    Tostevin JA, Rugmai S, Johnson RC, Okamura H, Ishida S, Sakamoto N, Otsu H, Uesaka T, Wakasa T, Sakai H, Niizeki T, Toyokawa H, Tajima Y, Ohnuma H, Yosoi M, Hatanaka K, Ichihara T

    PHYSICS LETTERS B   1998.4

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    Coulomb breakup of light composite nuclei

  • Coulomb breakup of light composite nuclei Reviewed

    JA Tostevin, S Rugmai, RC Johnson, H Okamura, S Ishida, N Sakamoto, H Otsu, T Uesaka, T Wakasa, H Sakai, T Niizeki, H Toyokawa, Y Tajima, H Ohnuma, M Yosoi, K Hatanaka, T Ichihara

    PHYSICS LETTERS B   424 ( 3-4 )   219 - 225   1998.4

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    DOI: 10.1016/S0370-2693(98)00228-7

  • Coulomb breakup of light composite nuclei Reviewed

    J. A. Tostevin, S. Rugmai, R. C. Johnson, H. Okamura, S. Ishida, N. Sakamoto, H. Otsu, T. Uesaka, T. Wakasa, H. Sakai, T. Niizeki, H. Toyokawa, Y. Tajima, H. Ohnuma, M. Yosoi, K. Hatanaka, T. Ichihara

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   424 ( 3-4 )   219 - 225   1998.4

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    DOI: 10.1016/S0370-2693(98)00228-7

  • Cross sections and complete polarization transfer measurements for the 2 H(p→, n→)pp reaction at 346 MeV Reviewed

    631   757 - 761   1998.3

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    Cross sections and complete polarization transfer coefficients D
    ij
    for the charge-exchange
    2
    H(p→, n→)pp reaction have been measured at E
    p
    = 346 MeV and θ
    lab
    = 0° - 22°. In the forward angles the prominent narrow peak due to the strong
    1
    S
    0
    final state interaction (FSI) between the two residual protons is observed while at the large angles the broad bump due to the quasi-free scattering (QFS) becomes prominent. Characteristic features of FSI and QFS are well described by the simple plane-wave impulse approximation (PWIA) calculations.

  • Cross sections and complete polarization transfer measurements for the H-2((p)over-right-arrow,(p)over-right-arrow)pp reaction at 346 MeV Reviewed

    H Sakai, T Wakasa, T Nonaka, H Okamura, H Otsu, S Fujita, S Ishida, N Sakamoto, T Uesaka, Y Satou, T Ohnishi, G Yokoyama, M Ichimura, MB Greenfield, K Hatanaka

    NUCLEAR PHYSICS A   631   757C - 761C   1998.3

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  • Detector system of the first focal plane of the spectrometer SMART at RIKEN Reviewed

    H Okamura, S Ishida, N Sakamoto, H Otsu, T Uesaka, T Wakasa, Y Satou, H Sakai, T Niizeki, H Ohnuma, T Ichihara

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   406 ( 1 )   78 - 88   1998.3

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  • Detector system of the first focal plane of the spectrometer SMART at RIKEN Reviewed

    H. Okamura, S. Ishida, N. Sakamoto, H. Otsu, T. Uesaka, T. Wakasa, Y. Satou, H. Sakai, T. Niizeki, H. Ohnuma, T. Ichihara

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   406 ( 1 )   78 - 88   1998.3

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    DOI: 10.1016/S0168-9002(97)01217-5

  • Performance of the neutron polarimeter NPOL2 for ((p)over-right-arrow,(n)over-right-arrow) polarization transfer measurements Reviewed International journal

    Wakasa T, Sakai H, Okamura H, Otsu H, Fujita S, Ishida S, Sakamoto N, Uesaka T, Satou Y, Nonaka T, Ohnishi T, Greenfield MB, Hatanaka K

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   1998.2

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    Performance of the neutron polarimeter NPOL2 for ((p)over-right-arrow,(n)over-right-arrow) polarization transfer measurements

  • Performance of the neutron polarimeter NPOL2 for ((p)over-right-arrow,(n)over-right-arrow) polarization transfer measurements Reviewed

    T Wakasa, H Sakai, H Okamura, H Otsu, S Fujita, S Ishida, N Sakamoto, T Uesaka, Y Satou, T Nonaka, T Ohnishi, MB Greenfield, K Hatanaka

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   404 ( 2-3 )   355 - 372   1998.2

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  • Solar flare and neutrino telescope Invited Reviewed International journal

    Muraki Y, Matsubara Y, Imaida I, Koi T, Murata T, Okada A, Sakakibara S, Sako T, Tsuchiya H, Munakata Y, Shibata S, Tatsuoka R, Sakai H, Nonaka T, Ohnishi T, Wakasa T, Hatanaka K, Ishida Y

    NUCLEAR PHYSICS B   1998.1

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    Solar flare and neutrino telescope

  • Polarized He-3 project at RIKEN Reviewed

    T Uesaka, T Wakui, T Ohnishi, H Okamura, Y Satou, S Ishida, N Sakamoto, H Otsu, T Wakasa, T Nonaka, G Yokoyama, K Itoh, K Sekiguchi, S Haruyama, T Ikeda, M Wakasugi, H Sakai, Y Yano

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   402 ( 2-3 )   212 - 217   1998.1

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  • Solar flare and neutron telescope Reviewed

    Y. Muraki, Y. Matsubara, I. Imaida, T. Koi, T. Murata, A. Okada, S. Sakakibara, T. Sako, H. Tsuchiya, Y. Munakata, S. Shibata, R. Tatsuoka, H. Sakai, T. Nonaka, T. Ohnishi, T. Wakasa, K. Hatanaka, Y. Ishida

    Nuclear Physics B - Proceedings Supplements   60 ( 3 )   3 - 11   1998.1

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    DOI: 10.1016/S0920-5632(97)00496-9

  • Polarized 3 He project at RIKEN Reviewed

    T. Uesaka, T. Wakui, T. Ohnishi, H. Okamura, Y. Satou, S. Ishida, N. Sakamoto, H. Otsu, Tomotsugu Wakasa, T. Nonaka, G. Yokoyama, K. Itoh, K. Sekiguchi, S. Haruyama, T. Ikeda, M. Wakasugi, H. Sakai, Y. Yano

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   402 ( 2-3 )   212 - 217   1998.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/S0168-9002(97)00837-1

  • Mechanism of the forward-angle [Formula Presented] reaction at intermediate energies Reviewed

    H. Okamura, S. Ishida, N. Sakamoto, H. Otsu, T. Uesaka, T. Wakasa, H. Sakai, T. Niizeki, H. Toyokawa, Y. Tajima, H. Ohnuma, M. Yosoi, K. Hatanaka, T. Ichihara

    Physical Review C - Nuclear Physics   58 ( 4 )   2180 - 2191   1998.1

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    DOI: 10.1103/PhysRevC.58.2180

  • Gamow-Teller strength of Nb-90 in the continuum studied via multipole decomposition analysis of the Zr-90(p,n) reaction at 295 MeV Reviewed International journal

    Wakasa T, Sakai H, Okamura H, Otsu H, Fujita S, Ishida S, Sakamoto N, Uesaka T, Satou Y, Greenfield MB, Hatanaka K

    PHYSICAL REVIEW C   1997.6

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    Gamow-Teller strength of Nb-90 in the continuum studied via multipole decomposition analysis of the Zr-90(p,n) reaction at 295 MeV

  • Gamow-Teller strength of Nb-90 in the continuum studied via multipole decomposition analysis of the Zr-90(p,n) reaction at 295 MeV Reviewed

    T Wakasa, H Sakai, H Okamura, H Otsu, S Fujita, S Ishida, N Sakamoto, T Uesaka, Y Satou, MB Greenfield, K Hatanaka

    PHYSICAL REVIEW C   55 ( 6 )   2909 - 2922   1997.6

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  • Gamow-Teller strength of [Formula Presented]Nb in the continuum studied via multipole decomposition analysis of the [Formula Presented]Zr[Formula Presented] reaction at 295 MeV Reviewed

    Tomotsugu Wakasa, H. Sakai, H. Okamura, H. Otsu, S. Fujita, S. Ishida, N. Sakamoto, T. Uesaka, Y. Satou, M. B. Greenfield, K. Hatanaka

    Physical Review C - Nuclear Physics   55 ( 6 )   2909 - 2922   1997.1

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    DOI: 10.1103/PhysRevC.55.2909

  • Multipole decomposition analysis of the Al-27, Zr-90, Pb-208(p,n) reactions at 295 MeV Invited Reviewed International journal

    Wakasa T, Sakai H, Okamura H, Otsu H, Sakamoto N, Uesaka T, Satou Y, Fujita S, Ishida S, Greenfield MB, Koori N, Okihana A, Hatanaka K

    NUCLEAR PHYSICS A   1996.5

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    Multipole decomposition analysis of the Al-27, Zr-90, Pb-208(p,n) reactions at 295 MeV

  • Spin-isospin excitations studied by polarized beams Invited Reviewed International journal

    Sakai H, Okamura H, Otsu H, Wakasa T, Fujita S, Sakamoto N, Uesaka T, Satou Y, Nonaka T, Oonishi T, Greenfield MB, Hatanaka K

    NUCLEAR PHYSICS A   1996.5

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    Spin-isospin excitations studied by polarized beams

  • Multipole decomposition analysis of the 27Al, 90Zr, 208Pb(p, n) reactions at 295 MeV Reviewed

    Tomotsugu Wakasa, H. Sakai, H. Okamura, H. Otsu, N. Sakamoto, T. Uesaka, Y. Satou, S. Fujita, S. Ishida, M. B. Greenfield, N. Koori, A. Okihana, K. Hatanaka

    Nuclear Physics A   599 ( 1-2 )   1996.3

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  • Spin-isospin excitations studied by polarized beams Reviewed

    H Sakai, H Okamura, H Otsu, T Wakasa, S Fujita, N Sakamoto, T Uesaka, Y Satou, T Nonaka, T Oonishi, MB Greenfield, K Hatanaka

    NUCLEAR PHYSICS A   599 ( 1-2 )   C197 - C210   1996.3

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  • Multipole decomposition analysis of the Al-27, Zr-90, Pb-208(p,n) reactions at 295 MeV Reviewed

    T Wakasa, H Sakai, H Okamura, H Otsu, N Sakamoto, T Uesaka, Y Satou, S Fujita, S Ishida, MB Greenfield, N Koori, A Okihana, K Hatanaka

    NUCLEAR PHYSICS A   599 ( 1-2 )   C217 - C222   1996.3

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  • Spin-isospin excitations studied by polarized beams Reviewed

    H. Sakai, H. Okamura, H. Otsu, T. Wakasa, S. Fujita, N. Sakamoto, T. Uesaka, Y. Satou, T. Nonaka, T. Oonishi, S. Ishida, M. B. Greenfield, K. Hatanaka

    Nuclear Physics A   599 ( 1-2 )   197C - 210C   1996.3

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    DOI: 10.1016/0375-9474(96)00062-0

  • Facility for the (p, n) polarization transfer measurement Reviewed

    H. Sakai, H. Okamura, H. Otsu, T. Wakasa, S. Ishida, N. Sakamoto, T. Uesaka, Y. Satou, S. Fujita, K. Hatanaka

    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment   369 ( 1 )   120 - 134   1996.1

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    DOI: 10.1016/0168-9002(95)00716-4

  • Facility for the (p,n) polarization transfer measurement Reviewed

    H Sakai, H Okamura, H Otsu, T Wakasa, S Ishida, N Sakamoto, T Uesaka, Y Satou, S Fujita, K Hatanaka

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   369 ( 1 )   120 - 134   1996.1

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  • Measurement of the vector and tensor analyzing powers for the d-p elastic scattering at E d = 270 MeV Reviewed

    N. Sakamoto, H. Okamura, T. Uesaka, S. Ishida, H. Otsu, Tomotsugu Wakasa, Y. Satou, T. Niizeki, K. Katoh, T. Yamashita, K. Hatanaka, Y. Koike, H. Sakai

    Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics   367 ( 1-4 )   60 - 64   1996.1

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    DOI: 10.1016/0370-2693(95)01398-9

  • SPIN-FLIP PROBABILITY VIA THE MG-26(HE-3,T-GAMMA)AL-26 REACTION Reviewed International journal

    SAKAI H, AOYAMA T, FUJITAKA S, HARAKEH MN, KUBOTA K, OKAMURA H, OTSU H, SATOU Y, TANAKA M, UESAKA T, WAKASA T

    NUCLEAR PHYSICS A   1995.6

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    SPIN-FLIP PROBABILITY VIA THE MG-26(HE-3,T-GAMMA)AL-26 REACTION

  • SPIN-FLIP PROBABILITY VIA THE MG-26(HE-3,T-GAMMA)AL-26 REACTION Reviewed

    H SAKAI, T AOYAMA, S FUJITAKA, MN HARAKEH, K KUBOTA, H OKAMURA, H OTSU, Y SATOU, M TANAKA, T UESAKA, T WAKASA

    NUCLEAR PHYSICS A   588 ( 2 )   479 - 489   1995.6

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  • Spin-flip probability via the 26Mg(3He,tγ)26Al reaction Reviewed

    588 ( 2 )   479 - 489   1995.6

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    The spin-flip probability for the charge-exchange reaction 26Mg(3He,tγ)26Al (1+; 1.06 MeV) has been measured at E = 53 MeV and θlab = 10°. The extracted value is 0.41 ± 0.04. A microscopic DWBA calculation with empirically determined effective interactions reproduces the observed cross sections fairly well but the spin-flip probability poorly. To supplement the (3He,tγ) study, the spin-flip probability has been measured for the same state by the charge-exchange (p,nγ) reaction at 35 MeV and θlab = 30° and found to be 0.52 ± 0.11. Though statistically not significant the lower value of S in the (3He,t) reaction may reflect on the more complex nature of this reaction at the present bombarding energy.

    DOI: 10.1016/0375-9474(95)00039-4

  • SPIN-FLIP STRENGTH IN THE CONTINUUM AND EFFECTIVE TENSOR INTERACTIONS VIA POLARIZATION TRANSFER D-NN(0-DEGREES) FOR ((P)OVER-RIGHT-ARROW,(N)OVER-RIGHT-ARROW) REACTIONS AT 295-MEV Reviewed International journal

    WAKASA T, SAKAI H, OKAMURA H, OTSU H, ISHIDA S, SAKAMOTO N, UESAKA T, SATOU Y, GREENFIELD MB, KOORI N, OKIHANA A, HATANAKA K

    PHYSICAL REVIEW C   1995.6

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    SPIN-FLIP STRENGTH IN THE CONTINUUM AND EFFECTIVE TENSOR INTERACTIONS VIA POLARIZATION TRANSFER D-NN(0-DEGREES) FOR ((P)OVER-RIGHT-ARROW,(N)OVER-RIGHT-ARROW) REACTIONS AT 295-MEV

  • TENSOR ANALYZING POWER OF THE (D,HE-2)-REACTION AT 270-MEV Invited Reviewed International journal

    OKAMURA H, FUJITA S, HARA Y, HATANAKA K, ICHIHARA T, ISHIDA S, KATOH K, NIIZEKI T, OHNUMA H, OTSU H, SAKAI H, SAKAMOTO N, SATOU Y, UESAKA T, WAKASA T, YAMASHITA T

    PHYSICS LETTERS B   1995.2

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    TENSOR ANALYZING POWER OF THE (D,HE-2)-REACTION AT 270-MEV

  • Tensor analyzing power of the (d, 2 He) reaction at 270 MeV Reviewed

    H. Okamura, S. Fujita, Y. Hara, K. Hatanaka, T. Ichihara, S. Ishida, K. Katoh, T. Niizeki, H. Ohnuma, H. Otsu, H. Sakai, N. Sakamoto, Y. Satou, T. Uesaka, Tomotsugu Wakasa, T. Yamashita

    Physics Letters B   345 ( 1 )   1 - 5   1995.2

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    DOI: 10.1016/0370-2693(94)01607-E

  • Spin-flip strength in the continuum and effective tensor interactions via polarization transfer DNN(0°) for (p→,n→) reactions at 295 MeV Reviewed

    51 ( 6 )   1995.1

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    The first measurements of DNN(0°) for (p→,n→) reactions at 295 MeV yield large negative values up to 50 MeV excitation for the Li6,11B,12C, C13(p→,n→) reactions, suggesting much stronger spin-flip strength than observed at lower bombarding energies. DWIA calculations using the Franey and Love (FL) 270 MeV interaction reproduce differential cross sections and DNN(0°) values, while the FL 325 MeV interaction yield DNN(0°) values less negative than the experimental values, suggesting that its exchange tensor part is too strong at large momentum transfer (Q3.4 fm-1).

    DOI: 10.1103/PhysRevC.51.R2871

  • MEASUREMENTS OF QUASI-ELASTIC SCATTERING AND D-NN(0-DEGREES) WITH (P,N) REACTIONS Invited Reviewed International journal

    SAKAI H, GREENFIELD MB, HATANAKA K, ISHIDA S, KOORI N, OKAMURA H, OKIHANA A, OTSU H, SAKAMOTO N, SATOU Y, UESAKA T, WAKASA T

    NUCLEAR PHYSICS A   1994.9

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    MEASUREMENTS OF QUASI-ELASTIC SCATTERING AND D-NN(0-DEGREES) WITH (P,N) REACTIONS

  • Spin-isospin excitation in sd-shell nuclei studied by the (d, 2He) reaction at E<inf>d</inf> = 270 MeV

    T. Niizeki, H. Ohnuma, T. Yamamoto, K. Katoh, T. Yamashita, Y. Hara, H. Okamura, H. Sakai, S. Ishida, N. Sakamoto, H. Otsu, T. Wakasa, T. Uesaka, Y. Satou, T. Fujita, T. Ichihara, H. Orihara, H. Toyokawa, K. Hatanaka, S. Kato, S. Kubono, M. Yosoi

    Nuclear Physics, Section A   577   37 - 42   1994.9

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    Spin-isospin excitation in sd-shell nuclei studied by the (d, 2He) reaction at E<inf>d</inf> = 270 MeV
    The (d,2He) reactions on 24Mg, 26Mg and 28Si were studied at Ed = 270 MeV. The 0o cross sections obtained for the 1+ states from the 24Mg,28Si(d,2He) reactions show a good correlation with those from the mirror (p,n) reactions. Four peaks were identified in the 26Mg(d,2He)26Ne reactions as being due to the 1+ excitation. The B(GT+) values for these transitions were estimated and compared with the shell model prediction. © 1994.

    DOI: 10.1016/0375-9474(94)90831-1

  • STUDY OF THE SPIN-DIPOLE STATE VIA THE ((D)OVER-RIGHT-ARROW,HE-2) REACTION AT 270 MEV Reviewed

    H OKAMURA, S ISHIDA, N SAKAMOTO, H OTSU, T UESAKA, T WAKASA, Y SATOH, T FUJITA, H SAKAI, T NIIZEKI, K KATOH, T YAMAMOTO, T YAMASHITA, Y HARA, H OHNUMA, T ICHIHARA, K HATANAKA

    NUCLEAR PHYSICS A   577 ( 1-2 )   C89 - C92   1994.9

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  • MEASUREMENTS OF QUASI-ELASTIC SCATTERING AND D-NN(0-DEGREES) WITH (P,N) REACTIONS Reviewed

    H SAKAI, MB GREENFIELD, K HATANAKA, S ISHIDA, N KOORI, H OKAMURA, A OKIHANA, H OTSU, N SAKAMOTO, Y SATOU, T UESAKA, T WAKASA

    NUCLEAR PHYSICS A   577 ( 1-2 )   C111 - C121   1994.9

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  • Study of the spin-dipole state via the (→d, 2He) reaction at 270 MeV Reviewed

    577 ( 1-2 )   89 - 92   1994.9

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    It is theoretically shown that the tensor analyzing powers of the (→d, 2He) reaction contain essentially the same nuclear infrrmation as (→N, →N polarization transfer observables [1]. Considering its unique selectivities, ΔS =1, ΔT = 1 and ΔTZ = +1, the (→d, 2He) reaction should be a useful tool for the study of spin-dipole state, particularly in identifying Jπ (2-, 1- and 0-). To confirm this point experimentally, Axx, Ayy and Ay of the 12C(→d, 2He) 12B reaction have been measured at Ed = 270 MeV utilizing the newly constructed polarized ion source at RIKEN.

    DOI: 10.1016/0375-9474(94)90839-7

  • Spin-isospin excitation in sd-shell nuclei studied by the (d, 2He) reaction at Ed = 270 MeV Reviewed

    T. Niizeki, H. Ohnuma, T. Yamamoto, K. Katoh, T. Yamashita, Y. Hara, H. Okamura, H. Sakai, S. Ishida, N. Sakamoto, H. Otsu, T. Wakasa, T. Uesaka, Y. Satou, T. Fujita, T. Ichihara, H. Orihara, H. Toyokawa, K. Hatanaka, S. Kato, S. Kubono, M. Yosoi

    Nuclear Physics, Section A   577 ( 1-2 )   37 - 42   1994.9

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    DOI: 10.1016/0375-9474(94)90831-1

  • Measurements of quasi-elastic scattering and DNN(0°) with (p, n) reactions Reviewed

    577 ( 1-2 )   111 - 122   1994.9

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    The quasi-elastic scattering (QES) process has been studied for the (p, n) reaction at 300 and 400 MeV. Energy spectra for targets ranging from 2H to natPb have been obtained for a wide range of scattering angles corresponding to momentum transfers q = 1.0 - 2.4 fm-1. Energy shift of the QES peak from that of 2H to higher excitation energy is observed for all targets studied, with a gradual increase with target mass reaching almost a constant value of ∼26 MeV beyond 12C. The mass dependence oo the effective neutron number (Neff) for the (p, n) QFS process is well represented by Neff = 0.85N0.5 over a wide mass range from 2H to natPb except for 6Li, 7Li and 9Be which deviate significantly. The analyzing powers of the QES peak region for the 12C and 40Ca targets are compared to those of the 2H(p, n) reaction at 300 and 400 MeV and found to be almost identical for q ≤ 1.5 fm-1. Transverse polarization transfer coefficients at 0 degree DNN(0°) have been measured for the 1p shell nuclei at 300 MeV. Large negative DNN(0°) values are observed for the continuum region up to an excitation energy of 50 MeV irrespective of targets. The DNN(0°) values observed for the GT transitions are around -0.28 which indicates the contribution from the tensor interactions. The DWIA calculations well reproduce the observed DNN(0°) values.

    DOI: 10.1016/0375-9474(94)90843-5

  • STUDY OF THE SPIN-DIPOLE STATE VIA THE ((D)OVER-RIGHT-ARROW,HE-2) REACTION AT 270 MEV Invited Reviewed International journal

    OKAMURA H, ISHIDA S, SAKAMOTO N, OTSU H, UESAKA T, WAKASA T, SATOH Y, FUJITA T, SAKAI H, NIIZEKI T, KATOH K, YAMAMOTO T, YAMASHITA T, HARA Y, OHNUMA H, ICHIHARA T, HATANAKA K

    NUCLEAR PHYSICS A   1994.9

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    STUDY OF THE SPIN-DIPOLE STATE VIA THE ((D)OVER-RIGHT-ARROW,HE-2) REACTION AT 270 MEV

  • SPIN-ISOSPIN EXCITATION IN SD-SHELL NUCLEI STUDIED BY THE (D,HE-2) REACTION AT E(D)=270 MEV Invited Reviewed International journal

    NIIZEKI T, OHNUMA H, YAMAMOTO T, KATOH K, YAMASHITA T, HARA Y, OKAMURA H, SAKAI H, ISHIDA S, SAKAMOTO N, OTSU H, WAKASA T, UESAKA T, SATOU Y, FUJITA T, ICHIHARA T, ORIHARA H, TOYOKAWA H, HATANAKA K, KATO S, KUBONO S, YOSOI M

    NUCLEAR PHYSICS A   1994.9

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    SPIN-ISOSPIN EXCITATION IN SD-SHELL NUCLEI STUDIED BY THE (D,HE-2) REACTION AT E(D)=270 MEV

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Books

  • Proceedings of the Seventh International Topical Conference on Giant Resonances (GR2000)

    ( Role: Edit)

    Elsevier Science  2001.4 

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    Language:English   Book type:Scholarly book

  • Nuclear Responses and Medium Effects

    ( Role: Edit)

    Universal Academy Press  1999.4 

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    Language:English   Book type:Scholarly book

  • New Facet of Spin Giant Resonances in Nuclei

    ( Role: Edit)

    World Scientific  1998.4 

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    Language:English   Book type:Scholarly book

Presentations

  • 九州大学における素粒子・原子核研究と加速器科学 Invited

    若狭 智嗣

    第19回日本加速器学会年会  2022.10 

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    Event date: 2022.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:ハイブリッド開催   Country:Japan  

    九州大学では、理学研究院・工学研究院等の部局と、超重元素研究センター (RCSHE)・先端素粒子物理研究センター(RCAPP)・加速器ビーム応用科学センター(CABAS)のセンターが連携した「先端素粒子・原子核研究拠点」を形成し、素粒子・原子核等の基礎科学の分野において国際的なネットワークを構築すると共に、若手研究者や博士課程学生の育成を推進している。現在、元素の周期表は7周期目まで完成し、九州大学は基幹組織として119番新元素合成実験を理化学研究所で推進している。新元素合成は極めて長期間に渡る研究であるが、119番・120番の新元素を発見することは科学のフロンティアである。他方、素粒子実験においても、CERN/LHCにおいて令和4年2月からRun3実験が開始され、ヒッグス粒子の性質の測定や、標準理論を超える物理の探索などが行われる。また、J-PARC/COMETにおいても令和4年12月には最初のミューオンビームを用いたPhase-α実験が予定されている。加速器センターにおいては、タンデム加速器のビームは教育・研究に供されており、新元素・新同位体・不安定核研究に用いる検出器開発等が行われている。また、FFAG加速器からの100 MeV級陽子ビームを実験に供する為の「FFAGビーム照射システム」や、京都大学から移設した「ERIT中性子発生装置」の整備が進みつつある。
    本講演では、このような九州大学における原子核・素粒子物理学や加速器科学の研究について最近の成果や将来計画・展望を紹介する。

  • 九州大学における素粒子・原子核研究と加速器科学 Invited

    若狭 智嗣

    第19回日本加速器学会年会  2022.10 

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    Event date: 2022.10

    Language:Japanese  

    Venue:ハイブリッド開催   Country:Japan  

    九州大学では、理学研究院・工学研究院等の部局と、超重元素研究センター (RCSHE)・先端素粒子物理研究センター(RCAPP)・加速器ビーム応用科学センター(CABAS)のセンターが連携した「先端素粒子・原子核研究拠点」を形成し、素粒子・原子核等の基礎科学の分野において国際的なネットワークを構築すると共に、若手研究者や博士課程学生の育成を推進している。現在、元素の周期表は7周期目まで完成し、九州大学は基幹組織として119番新元素合成実験を理化学研究所で推進している。新元素合成は極めて長期間に渡る研究であるが、119番・120番の新元素を発見することは科学のフロンティアである。他方、素粒子実験においても、CERN/LHCにおいて令和4年2月からRun3実験が開始され、ヒッグス粒子の性質の測定や、標準理論を超える物理の探索などが行われる。また、J-PARC/COMETにおいても令和4年12月には最初のミューオンビームを用いたPhase-α実験が予定されている。加速器センターにおいては、タンデム加速器のビームは教育・研究に供されており、新元素・新同位体・不安定核研究に用いる検出器開発等が行われている。また、FFAG加速器からの100 MeV級陽子ビームを実験に供する為の「FFAGビーム照射システム」や、京都大学から移設した「ERIT中性子発生装置」の整備が進みつつある。
    本講演では、このような九州大学における原子核・素粒子物理学や加速器科学の研究について最近の成果や将来計画・展望を紹介する。

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  • Studies of two- and three-nucleon interactions in nuclear reactions Invited International conference

    WAKASA TOMOTSUGU

    5th Joint Meeting of the Nuclear Physics Divisions of the APS and the JPS, 23-27 Oct. 2018, Hawaii, U.S.A.  2018.10 

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    Event date: 2018.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  • Nuclear Spin Physics via Polarization Measurements Invited International conference

    WAKASA TOMOTSUGU

    The 23rd International Spin Physics Symposium (SPIN2018), Ferrara, Italy, September 2018.  2018.9 

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    Event date: 2018.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Italy  

  • Pionic and Tensor Correlations Studied by High Resolution and Polarization Transfer Measurements Invited International conference

    HST15  2015.11 

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    Event date: 2015.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 偏極移行量測定による双極子励起モードの研究 Invited

    若狭 智嗣

    日本物理学会  2015.9 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Symposium, workshop panel (public)  

    Venue:関西学院大学   Country:Japan  

    偏極移行量測定による双極子励起モードの研究

  • Decomposing Spin-Dipole Resonances by Complete Polarization Transfer Measurements Invited International conference

    WAKASA TOMOTSUGU

    International Conference on Recent Trends in Nuclear Physics" (ICRTNP-2012)  2012.11 

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    Event date: 2012.11

    Language:English   Presentation type:Oral presentation (general)  

    Country:India  

  • Spin-Parity Decomposition of Spin Dipole Resonances and Tensor Interaction Effects Invited International conference

    WAKASA TOMOTSUGU

    The 4th international conference on Collective Motion in Nuclei under Extreme Conditions (COMEX4)  2012.10 

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    Event date: 2012.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • エネルギーアップグレードによる物理 Invited

    若狭 智嗣

    大阪大学核物理研究センター研究計画検討専門委員会  2012.3 

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    Event date: 2012.3

    Language:Others   Presentation type:Oral presentation (general)  

    Venue:大阪大学核物理研究センター   Country:Japan  

  • エネルギーアップグレードによる物理 Invited

    若狭 智嗣

    大阪大学核物理研究センター研究計画検討専門委員会  2012.3 

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    Event date: 2012.3

    Language:Others   Presentation type:Oral presentation (general)  

    Venue:大阪大学核物理研究センター   Country:Japan  

  • 精密核物理の将来 Invited

    若狭 智嗣

    日本物理学会  2011.9 

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    Event date: 2011.9

    Language:Others   Presentation type:Symposium, workshop panel (public)  

    Venue:弘前大学   Country:Japan  

  • Pionic and Tensor Correlations on Spin and Isospin Responses Invited International conference

    T. Wakasa

    Reactions and Nucleon Properties in Rare Isotopes  2010.4 

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    Event date: 2010.4

    Language:Others   Presentation type:Oral presentation (general)  

    Country:Italy  

  • Gamow-Teller and Spin-Dipole Transitions Studied by (p,n) Polarization Measurements Invited International conference

    T. Wakasa

    New Facet of Spin-Isospin Responses (SIR2010)  2010.2 

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    Event date: 2010.2

    Language:Others   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Nuclear Spin Physics via Polarization Measurements Invited International conference

    T. Wakasa

    SPIN2008 International Spin Physics Symposium  2008.10 

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    Event date: 2008.10

    Language:Others   Presentation type:Oral presentation (general)  

    Country:United States  

  • Isovector Effective NN Interaction in 28Si(p,n)28P(6-) at 198 MeV International conference

    T. Wakasa

    INPC2007 International Nuclear Physics Conference 2007  2007.6 

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    Country:Japan  

  • Search for Alpha Cluster Condensed State in 16O via 16O(alpha,alpha') Scattering Invited International conference

    T. Wakasa

    NS07 International Workshop in Nuclear Structure -New Pictures in the Extended Isospin Space-  2007.6 

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    Country:Japan  

  • アイソベクトル型反応で見る原子核中のパイオンの役割 Invited

    若狭 智嗣

    日本物理学会  2008.3 

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    Venue:近畿大学   Country:Japan  

  • Proton-induced knockout (p,2N) reactions on stable nuclei as a tool to determine spectroscopic factors Invited International conference

    WAKASA TOMOTSUGU

    The African Nuclear Physics Conference 2023 (ANPC2023)  2023.12 

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    Event date: 2023.11 - 2023.12

    Language:English   Presentation type:Oral presentation (general)  

    Country:South Africa  

  • Nuclear Spin-Isospin Responses Studied by Nuclear Reactions; A tribute to Munetake Ichimura Invited International conference

    WAKASA TOMOTSUGU

    24th International Spin Symposium (SPIN2021)  2021.10 

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    Event date: 2021.10

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  • RCNPにおける(p,N)および(p,2N)反応におけるスピン観測量のデータについて Invited

    時間階層進化として捉える原子核反応  2020.10 

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    Event date: 2020.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン開催   Country:Japan  

  • Study of in-medium NN interactions by using (p,pN) reactions Invited

    WAKASA TOMOTSUGU

    2020.9 

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    Event date: 2020.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • Gamow-Teller and Spin-Dipole Resonances and Experimental Methods for Spin Excitations Invited International conference

    The 16th CNS International Summer School (CNSSS17), August 2017, Wako, Japan  2017.8 

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    Event date: 2017.8

    Language:English   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Country:Japan  

  • High resolution study of pionic 0- state in 16O International conference

    T. Wakasa, G.P.A. Berg, H. Fujimura, K. Fujita, K. Hatanaka, M. Itoh, J. Kamiya, T. Kawabata, K. Kitamura, E. Obayashi, H. Sakaguchi, N. Sakamoto, Y. Sakemi, Y. Shimizu, H. Takeda, M. Uchida, Y. Yasuda, H.P. Yoshida, and M. Yosoi

    Nuclear many-body and medium effects in nuclear interactions and reactions  2002.10 

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    Country:Japan  

  • Momentum transfer dependence of spin isospin modes in quasielastic region International conference

    T. Wakasa, H. Sakai, M. Ichimura, K. Hatanaka, M.B. Greenfield, H. Okamura, K. Kawahigashi, A. Tamii, H. Otsu, Y. Nakaokam, T. Ohnishi, K. Yako, K. Sekiguchi, T. Yagita, J. Kamiya, S. Sakoda, K. Suda, H. Kato, M. Hatano, and Y. Maeda

    15th international spin physics symposium  2002.9 

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    Country:United States  

  • New capabilities of the Grand raiden spectrometer International conference

    T. Wakasa, G.P.A. Berg, H. Fujita, Y. Fujita, K. Hatanaka, K. Hara, M. Itoh, J. Kamiya, T. Kawabata, K. Nagayama, T. Noro, H. Sakaguchi, Y. Shimbara, Y. Shinada, H. Takeda, K. Tamura, H. Ueno, M. Uchida, M. Uraki, and M. Yosoi

    16th international conference on particles and nuclei  2002.10 

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    Country:Japan  

  • Pionic correlations studied via (p,n) and (p,p') reactions Invited International conference

    T. Wakasa

    ECT* workshop on short and long-range contributions to nuclear saturation and binding  2003.6 

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    Country:Italy  

  • コヒーレント中間子生成とデルタ領域のスピン・アイソスピン物理 Invited

    若狭 智嗣, 酒見 泰寛

    核子と中間子の多体問題の統一的描像に向けて  2007.12 

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    Venue:大阪大学核物理研究センター   Country:Japan  

  • Complete set of polarization transfer coefficientsw for the 3He(p,n) reaction at 346 MeV and 0 degrees

    2008.3 

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    Country:Japan  

  • High resolution study of 0- state in 16O International conference

    T. Wakasa, G.P.A. Berg, H. Fujimura, K. Fujita, K. Hatanaka, M. Itoh, J. Kamiya, T. Kawabata, K. Kitamura, E. Obayashi, H. Sakaguchi, N. Sakamoto, Y. Sakemi, Y. Shimizu, H. Takeda, M. Uchida, Y. Yasuda, H.P. Yoshida, and M. Yosoi

    15th international spin physics symposium  2002.9 

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    Country:United States  

  • Gamow-Teller strength in the continuum and quenching problem International conference

    T. Wakasa, K. Hatanaka, H. Sakai, S. Fujita, T. Nonaka, K. Yako, K. Sekiguchi, H. Okamura, T. Uesaka, H. Otsu, S. Ishida, N. Sakamoto, Y. Satou, T. Ohnishi, and M.B. Greenfield

    7th international topical conference on giant resonances  2000.6 

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    Country:Japan  

▼display all

MISC

  • Proton-induced knockout reactions with polarized and unpolarized beams

    @T. Wakasa, K. Ogata, and @T. Noro

    Prog. Part. Nucl. Phys.   2017.6

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    Language:English   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    Proton-induced knockout reactions with polarized and unpolarized beams

  • Correction to: Nuclear-moment measurement using highly spin-aligned RI beams: Recent activities at RIBF (Interactions, (2024), 245, 1, (26), 10.1007/s10751-024-01869-2)

    Ichikawa Y., Shinohara Y., Go S., Nishibata H., Ando S., Asahi K., Baba H., Fukuda N., Georgiev G., Gladkov A., Imamura K., Kishimoto K., Lozeva R., Mukai M., Niikura M., Nor N.M., Odahara A., Shimizu Y., Si M., Stoychev K., Suzuki H., Tajima M., Takamine A., Takeda H., Takeshige S., Tanaka M., Togano Y., Ueno H., Wakasa T., Yamashita W., Yamazaki H., Yoshimoto M., Daugas J.M.

    Interactions   245 ( 1 )   2024.12

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    Publisher:Interactions  

    The original version of this article unfortunately contained mistakes. The corrections are given in the following list: (1) The author name ‘A. Gladkov’ was incorrectly written as ‘A. Gradkov’. (2) The ‘Availability of data and materials’ statement was incorrectly given as ‘No datasets were generated or analysed during the current study’ but should have been ‘The data that support the findings of this study are available from the corresponding author upon reasonable request’. The original article has been corrected.

    DOI: 10.1007/s10751-024-01894-1

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  • 26aHA-3 294MeV/nucleonの重陽子-陽子弾性散乱における重陽子偏極分解能の測定(26aHA 軽イオン反応・核融合・核モーメント,実験核物理領域)

    和田 泰敬, 関口 仁子, 宮崎 純平, 田口 貴大, 堂園 昌伯, Gebauer U., 川瀬 頌一郎, 久保田 悠樹, Lee C. S., 前田 幸重, 増子 尭博, 三木 謙二郎, 坂口 聡志, 酒井 英行, 坂本 成彦, 笹野 匡紀, 清水 洋平, 高橋 賢人, Tang R., 上坂 友洋, 若狭 智嗣, 矢向 謙太郎

    日本物理学会講演概要集   2013.3

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  • 13pSC-4 電子EDM探索に向けた外場印加システムの開発(13pSC 対称性・基礎物理,実験核物理領域)

    加藤 智洋, 井上 壮志, 伊藤 正俊, 原田 健一, 川村 広和, Nataraj Huliyar S., 早水 友洋, 佐藤 智哉, 江連 咲紀, 石川 泰佑, 有川 裕士, 青木 貴稔, 古川 武, 畠山 温, 吉田 英智, 畑中 吉治, 村上 哲也, 清水 康弘, 若狭 智嗣, 今井 憲一, 酒見 泰寛

    日本物理学会講演概要集   2012.8

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  • 13aSB-4 偏極陽子標的を用いた陽子ノックアウト反応による^<14,22,24>Oのスピン軌道分離の研究(13aSB 不安定核(実験),実験核物理領域)

    川瀬 頌一郎, 上坂 友洋, 下浦 享, 矢向 謙太郎, 大田 晋輔, 道正 新一郎, 時枝 紘史, 宮 裕之, Tang Tsz Leung, 木佐森 慶一, 高木 基伸, 久保田 悠樹, 李 清秀, 横山 輪, 藤井 俊彦, 小林 幹, 笹野 匡紀, 銭廣 十三, 松原 礼明, 堂園 昌伯, Lee Jenny, 酒井 英行, 久保 敏幸, 吉田 光一, 稲辺 尚人, 柳澤 善行, 竹田 浩之, 日下 健祐, 福田 直樹, 亀田 大輔, 鈴木 宏, 河原 朋美, 涌井 崇志, 坂口 聡志, 野呂 哲夫, 若狭 智嗣, 安田 淳平, 福永 拓, 前田 幸重, Kim Wooyoung, Hwang Sanghoon, Stepanyan Samvel, Obertelli Alexandre, Galindo-Uribarri Alfredo, Padilla-Rodal Elizabeth

    日本物理学会講演概要集   2012.8

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  • 25pXD-7 電子EDM探索のための高輝度アルカリ原子ビームの開発(25pXD 対称性・基礎物理(実験),実験核物理領域)

    佐藤 智哉, 青木 貴稔, 江連 咲紀, 古川 武, 原田 健一, 畠山 温, 畑中 吉治, 早水 友洋, 今井 憲一, 伊藤 正俊, 加藤 智洋, 川村 広和, Liu Shan, 村上 哲也, Nataraj Huliyar S., 及川 明人, 清水 康弘, 内田 誠, 若狭 智嗣, 吉田 英智, 酒見 泰寛

    日本物理学会講演概要集   2012.3

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  • 17aSZ-6 精密核物理の将来(17aSZ 実験核物理領域,理論核物理領域合同シンポジウム,主題:日本の核物理の将来,実験核物理領域)

    若狭 智嗣

    日本物理学会講演概要集   2011.8

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  • Complete set of polarization transfer observables for the O-16((p)over-right-arrow, (n)over-right-arrow) F-16 reaction at 296 MeV and 0 degrees

    T. Wakasa, M. Okamoto, M. Takaki, M. Dozono, K. Hatanaka, M. Ichimura, T. Noro, H. Okamura, Y. Sakemi

    PHYSICAL REVIEW C   2011.7

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    DOI: 10.1103/PhysRevC.84.014614

  • Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering

    K. Sekiguchi, H. Okamura, N. Sakamoto, H. Suzuki, M. Dozono, Y. Maeda, T. Saito, S. Sakaguchi, H. Sakai, M. Sasano, Y. Shimizu, T. Wakasa, K. Yako, H. Witala, W. Gloeckle, J. Golak, H. Kamada, A. Nogga

    PHYSICAL REVIEW C   2011.6

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    DOI: 10.1103/PhysRevC.83.061001

  • 28aGK-9 電子EDM探索のための大強度Fr生成装置の開発(28aGK 対称性・基礎物理,実験核物理領域)

    川村 広和, 伊藤 正俊, 吉田 英智, 原田 健一, 及川 明人, 早水 友洋, 斎藤 真樹, 佐藤 智哉, Nataraj Huliyar S., Liu Shan, 酒見 泰寛, 青木 貴稔, 今井 憲一, 村上 哲也, 畑中 吉治, 若狭 智嗣, 畠山 温, 内田 誠

    日本物理学会講演概要集   2011.3

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  • 26aGK-6 ^<12>C(p^^→,n^^→)反応による^<12>Nのスピン双極子遷移の研究(26aGK 宇宙核物理・軽イオン,実験核物理領域)

    堂園 昌伯, 若狭 智嗣, 野呂 哲夫, 相良 建至, 山田 由希子, 黒板 翔, 今村 拓巳, 下田 広己, 末田 雄大, 畑中 吉治, 岡村 弘之, 民井 淳, 松原 礼明, 酒見 泰寛

    日本物理学会講演概要集   2011.3

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  • 11aSK-7 電子EDM探索のためのFrビーム輸送装置の開発(11aSK イオン源・ターゲット,実験核物理領域)

    及川 明人, 早水 友洋, 伊藤 正俊, 吉田 英智, 原田 健一, 川村 広和, 齋藤 真樹, 佐藤 智哉, 酒見 泰寛, 青木 貴稔, 今井 憲一, 村上 哲也, 畑中 吉治, 若狭 智嗣

    日本物理学会講演概要集   2010.8

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  • 実験核物理領域,理論核物理領域「速い中性子捕獲課程,元素組成第三ピーク周辺の核物理,宇宙物理」(第65回年次大会シンポジウムの報告)

    若狭 智嗣

    日本物理學會誌   2010.7

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  • Spin-dipole strengths and tensor correlation effects for ${}^{208}{ m Pb}(p,n)$ at 295 MeV

    T. Wakasa, for, he, RCN, collaborations

    2010.4

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    Spin-dipole strengths and tensor correlation effects for ${}^{208}{
    m Pb}(p,n)$ at 295 MeV
    We performed the multipole decomposition analysis (MDA) for the ${}^{208}{
    m<br />
    Pb}(p,n)$ data in order to obtain the spin-dipole (SD) strengths separated into<br />
    each $Delta J^{pi}$ contribution $dB({
    m SD}_{Delta<br />
    J^{pi } };omega)/domega$.<br />
    The random phase approximation (RPA calculations reproduce the total SD<br />
    strength reasonably well, whereas some discrepancies are found for separated SD<br />
    strength.<br />
    The centroids of the resonances are slightly lower and higher than the<br />
    theoretical predictions for $1^-$ and $2^-$, respectively.<br />
    These softening and hardening effects observed in $1^-$ an...

  • 21pBH-7 ^<16>O(p^^→,n^^→)^<16>F反応の全偏極移行量測定による^<16>Fのスピン双極子状態の研究(21pBH 軽イオン核反応,実験核物理領域)

    岡本 緑, 若狭 智嗣, 堂園 昌伯, 高木 基伸, 酒見 泰寛, 畑中 吉治, 松原 礼明

    日本物理学会講演概要集   2010.3

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  • 21pBH-2 E_p=250MeV ^2H(p,pp)n反応における微分断面積の異常(21pBH 軽イオン核反応,実験核物理領域)

    黒板 翔, 相良 建至, 江口 祐一郎, 八嶋 恵介, 矢部 達也, 宍戸 拓郎, 堂園 昌伯, 山田 由希子, 若狭 智嗣, 野呂 哲夫, 松原 礼明, 銭廣 十三, 民井 淳, 岡村 弘之, 畑中 吉治, 斎藤 透, 前田 幸重, 鎌田 裕之

    日本物理学会講演概要集   2010.3

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  • 21pBH-3 250MeV/nucleon偏極重陽子-陽子弾性散乱測定と三核子力(21pBH 軽イオン核反応,実験核物理領域)

    関口 仁子, 坂本 成彦, 笹野 匡紀, 坂口 聡志, 岡村 弘之, 鈴木 宏, 酒井 英行, 矢向 謙太郎, 清水 陽平, 前田 幸重, 斉藤 透, 若狭 智嗣, 堂園 昌伯

    日本物理学会講演概要集   2010.3

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  • Polarization transfer measurements for C-12(p,n)N-12(g.s.,1(+)) at 296 MeV and nuclear correlation effects

    M. Dozono, T. Wakasa, E. Ihara, S. Asaji, K. Fujita, K. Hatanaka, M. Ichimura, T. Ishida, T. Kaneda, H. Matsubara, Y. Nagasue, T. Noro, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tameshige, A. Tamii, Y. Yamada

    PHYSICAL REVIEW C   2009.8

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    DOI: 10.1103/PhysRevC.80.024319

  • 22aSD-10 E_p=392MeVにおける(p,pn)反応測定のテスト(22aSD 核構造・基礎物理・軽イオン,実験核物理領域)

    山田 由希子, 野呂 哲夫, 今村 拓己, 若狭 智嗣, 堂園 昌伯, 相良 建至, 黒板 翔, 下田 広己, 末田 雄大, 畑中 吉治, 岡村 弘之, 民井 淳, 爲重 雄司, 銭廣 十三, 松原 礼明, 石川 大貴, 須田 健嗣, 坂口 治隆, 前田 幸重, 野中 敦, 藤田 規之, 安田 裕介, 酒見 泰寛, 伊藤 正俊, 吉田 英智

    日本物理学会講演概要集   2008.8

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  • Cross sections and analyzing powers for (p, n) reactions on He-3 and He-4 at 346 MeV

    E. Ihara, T. Wakasa, M. Dozono, K. Hatanaka, T. Imamura, M. Kato, S. Kuroita, H. Matsubara, T. Noro, H. Okamura, K. Sagara, Y. Sakemi, K. Sekiguchi, K. Suda, T. Sueta, Y. Tameshige, A. Tamii, H. Tanabe, Y. Yamada

    PHYSICAL REVIEW C   2008.8

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    DOI: 10.1103/PhysRevC.78.024607

  • Complete set of polarization transfer coefficients for the He-3(p, n) reaction at 346 MeV and 0 degrees

    T. Wakasa, E. Ihara, M. Dozono, K. Hatanaka, T. Imamura, M. Kato, S. Kuroita, H. Matsubara, T. Noro, H. Okamura, K. Sagara, Y. Sakemi, K. Sekiguchi, K. Suda, T. Sueta, Y. Tameshige, A. Tamii, H. Tanabe, Y. Yamada

    PHYSICAL REVIEW C   2008.5

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    DOI: 10.1103/PhysRevC.77.054611

  • Differential cross section and analyzing power of the ${vec p}p{ o}ppπ^0$ reaction at a beam energy of 390 MeV

    2008.4

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    The differential cross section and analyzing power $A_y$ of the ${vec<br />
    p}p{ o}pp{pi}^0$ reaction have been measured at RCNP in coplanar geometry at<br />
    a beam energy of 390 MeV and the dependence on both the pion emission angle and<br />
    the relative momentum of the final protons have been extracted. The angular<br />
    variation of Ay for the large values of the relative momentum studied here<br />
    shows that this is primarily an effect of the interference of pion s- and<br />
    p-waves and this interference can also explain the momentum dependence. Within<br />
    the framework of a very simple model, these results would sugge...

    DOI: 10.1103/PhysRevC.77.044004

  • 25pZF-3 アイソベクトル型反応で見る原子核中のパイオンの役割(実験核物理領域,理論核物理領域合同シンポジウム:パイ中間子の役割から見える原子核の新しい描像,実験核物理領域)

    若狭 智嗣

    日本物理学会講演概要集   2008.2

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  • High rate production of polarized He-3 with meta-stability exchange method

    Ema Ihara, Tomotsugu Wakasa, Masanori Dozono, Yasuhiro Sakemi

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   2008.2

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    DOI: 10.1143/JPSJ.77.025002

  • 24pZG-2 ^<116>CdのGT遷移強度(軽イオン・核反応・核構造,実験核物理領域)

    石川 大貴, 矢向 謙太郎, 笹野 匡紀, 酒井 英行, 民井 淳, 松原 礼明, 加藤 舞子, 岡村 弘之, 畑中 吉治, 酒見 秦寛, 若狭 智嗣, 堂園 昌伯, 伊原 エマ, Zegers R.G.T., Popescu Lucia-Ana, Harakeh M.N.

    日本物理学会講演概要集   2008.2

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  • 24pZG-3 ^<48>Ti(n,p)^<48>Sc反応による^<48>Ca二重β崩壊過程の研究(軽イオン・核反応・核構造,実験核物理領域)

    三木 謙二郎, 矢向 謙太郎, 酒井 英行, 久保木 浩功, 笹野 匡紀, 野地 俊平, 岡村 弘之, 須田 健嗣, 民井 淳, 為重 雄司, 畑中 吉治, 松原 礼明, 堂園 昌伯, 前田 幸重, 若狭 智嗣, 岡部 徹, 鄭 海燕

    日本物理学会講演概要集   2008.2

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  • 24pZG-4 ガモフ・テラー型反応^<12>C(p^^→,n^^→)^<12>N(g.s.;1^+)における核内中間子相関の研究II(軽イオン・核反応・核構造,実験核物理領域)

    堂園 昌伯, 若狭 智嗣, 伊原 エマ, 野呂 哲夫, 石田 孝司, 浅地 瞬, 永末 勇治, 竹田 英光, 山田 由希子, 田邉 英規, 畑中 吉治, 酒見 泰寛, 民井 淳, 清水 陽平, 藤田 訓裕, 為重 雄司, 松原 礼明, 金田 隆章

    日本物理学会講演概要集   2008.2

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  • Complete set of polarization transfer observables for the C-12(p, n) reaction at 296 MeV and 0 degrees

    Masanori Dozono, Tomotsugu Wakasa, Ema Ihara, Shun Asaji, Kunihiro Fujita, Kichiji Hatanaka, Takashi Ishida, Takaaki Kaneda, Hiroaki Matsubara, Yuji Nagasue, Tetsuo Noro, Yasuhiro Sakemi, Yohei Shimizu, Hidemitsu Takeda, Yuji Tameshige, Atsushi Tamii, Yukiko Yamada

    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN   2008.1

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    DOI: 10.1143/JPSJ.77.014201

  • Study of nuclear correlation effects via C-12((p)over-right-arrow, (n)over-right-arrow)N-12(g.s., 1(+)) at 296 MeV

    T. Wakasa, M. Dozono, E. Ihara, S. Asaji, K. Fujita, K. Hatanaka, M. Ichimura, T. Ishida, T. Kaneda, H. Matsubara, Y. Nagasue, T. Noro, Y. Sakemi, Y. Shimizu, H. Takeda, Y. Tameshige, A. Tamii, Y. Yamada

    PHYSICS LETTERS B   2007.11

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    DOI: 10.1016/j.physletb.2007.10.017

  • New candidate for an alpha cluster condensed state in O-16(alpha,alpha ') at 400 MeV

    T. Wakasa, E. Ihara, K. Fujita, Y. Funaki, K. Hatanaka, H. Horiuchi, M. Itoh, J. Kamiya, G. Roepke, H. Sakaguchi, N. Sakamoto, Y. Sakemi, P. Schuck, Y. Shimizu, M. Takashina, S. Terashima, A. Tohsaki, M. Uchida, H. P. Yoshida, M. Yosoi

    PHYSICS LETTERS B   2007.9

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    DOI: 10.1016/j.physletb.2007.08.016

  • 21pYF-8 ^3He(p,n)反応における0度の全偏極移行量測定(21pYF 軽イオン核反応・核構造,実験核物理領域)

    伊原 エマ, 若狭 智嗣, 堂園 昌伯, 野呂 哲夫, 山田 由希子, 田邉 英規, 今村 拓己, 相良 建至, 黒板 翔, 杉本 崇光, 畑中 吉治, 岡村 弘之, 民井 淳, 為重 雄司, 松原 礼明, 加藤 舞子, 須田 健嗣, 酒見 泰寛, 関口 仁子

    日本物理学会講演概要集   2007.8

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  • 21aYF-4 pf殼核のガモフ・テラー遷移の高分解能研究(21aYF 天体核物理,実験核物理領域)

    足立 竜也, 藤田 佳孝, Brentano P. von, Berg G.P.A., Botha N.T., Fransen C., Frenne D. De, 藤田 浩彦, 藤田 邦裕, 橋本 尚信, 畑中 吉治, Jacobs E., 神谷 潤一郎, 川瀬 啓悟, 松原 礼明, 中西 康介, Negret A., Neveling R., 太田 岳史, Pietralla N., Popescu L., 酒見 泰寛, 新原 佳弘, 清水 陽平, Scholl C., 爲重 雄司, 民井 淳, 内田 誠, 若狭 智嗣, 與曽井 優, Zegers R.G.T., Zell K.O.

    日本物理学会講演概要集   2007.8

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  • 21pYF-1 250MeV D(p,pp)分解反応測定による三体力の研究(21pYF 軽イオン核反応・核構造,実験核物理領域)

    前田 幸重, 上坂 友洋, 川畑 貴裕, 清水 陽平, 笹本 良子, 坂口 聡志, 酒井 英行, 矢向 謙太郎, 笹野 匡紀, 野地 俊平, 畑中 吉治, 民井 淳, 須田 健嗣, 為重 雄司, 松原 礼明, 関口 仁子, 武智 麻耶, 若狭 智嗣, 堂園 昌伯, 伊原 エマ

    日本物理学会講演概要集   2007.8

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  • 21pYF-2 pd分解反応断面積における異常探索実験(21pYF 軽イオン核反応・核構造,実験核物理領域)

    黒板 翔, 相良 建至, 工藤 隆, 杉本 崇光, 下田 広己, 末田 雄大, 山田 由希子, 若狭 智嗣, 野呂 哲夫, 爲重 雄司, 民井 淳, 畑中 吉治

    日本物理学会講演概要集   2007.8

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  • 21pYF-6 ^<12>C(p^^→,n^^→)反応による^<12>Nのスピン双極子共鳴の研究(21pYF 軽イオン核反応・核構造,実験核物理領域)

    堂園 昌伯, 若狭 智嗣, 伊原 エマ, 野呂 哲夫, 石田 孝司, 浅地 瞬, 永末 勇治, 竹田 英光, 山田 由希子, 田邉 英規, 畑中 吉治, 酒見 泰寛, 民井 淳, 清水 陽平, 藤田 訓裕, 為重 雄司, 松原 礼明, 金田 隆章

    日本物理学会講演概要集   2007.8

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  • $2α+t$ cluster structure in $^{11}$B

    2007.3

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    The cluster structures of the excited states in $^{11}$B are studied by<br />
    analyzing the isoscalar monopole and quadrupole strengths in the<br />
    $^{11}$B($d$,$d&#039;$) reaction at $E_d=200$ MeV. The excitation strengths are<br />
    compared with the predictions by the shell-model and antisymmetrized<br />
    molecular-dynamics (AMD) calculations. It is found that the large monopole<br />
    strength for the $3/2^-_3$ state at $E_x=8.56$ MeV is well described by the AMD<br />
    calculation and is an evidence for a developed $2alpha+t$ cluster structure.

    DOI: 10.1016/j.physletb.2006.11.079

  • 28aSD-6 ガモフ・テラー型反応^<12>C(p^^→,n^^→)^<12>N(g.s.;1^+)における核内中間子相関の研究(28aSD 軽イオン核反応,実験核物理領域)

    堂園 昌伯, 若狭 智嗣, 伊原 エマ, 野呂 哲夫, 石田 孝司, 浅地 瞬, 永末 勇治, 竹田 英光, 山田 由希子, 田邉 英規, 畑中 吉治, 酒見 泰寛, 民井 淳, 清水 陽平, 藤田 訓裕, 為重 雄司, 松原 礼明, 金田 隆章

    日本物理学会講演概要集   2007.2

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  • 27aSE-11 準安定交換法による偏極^3He標的の開発(27aSE 加速器・イオン源・標的,実験核物理領域)

    伊原 エマ, 若狭 智嗣, 堂園 昌伯, 酒見 泰寛

    日本物理学会講演概要集   2007.2

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  • Identification of the [202]3/2 deformed band in mirror nuclei Mg-25 and Al-25 and implications for unstable nuclei

    Y. Fujita, I. Hamamoto, H. Fujita, Y. Shimbara, T. Adachi, G. P. A. Berg, K. Fujita, K. Hatanaka, J. Kamiya, K. Nakanishi, Y. Sakemi, Y. Shimizu, M. Uchida, T. Wakasa, M. Yosoi

    PHYSICA SCRIPTA   2006.7

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    DOI: 10.1088/0031-8949/2006/T125/047

  • 30pWD-3 ^<12>C(p^^→,n^^→)^<12>N(g.s.;1^+)反応における核内中間子相関の研究(30pWD 軽イオン,実験核物理領域)

    堂園 昌伯, 若狭 智嗣, 野呂 哲夫, 石田 孝司, 浅地 瞬, 永末 勇治, 竹田 英光, 山田 由希子, 畑中 吉治, 酒見 泰寛, 民井 淳, 清水 陽平, 藤田 訓裕, 為重 雄司, 松原 礼明, 金田 隆章

    日本物理学会講演概要集   2006.3

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  • 30pWD-1 E_p=392MeVでの^<208>Pb(p,2p)反応における相対論的効果の実験的研究(30pWD 軽イオン,実験核物理領域)

    石田 孝司, 野呂 哲夫, 若狭 智嗣, 吉田 英智, 浅地 瞬, 永末 勇治, 竹田 英光, 堂園 昌伯, 山田 由希子, 畑中 吉治, 酒見 泰寛, 民井 淳, 清水 陽平, 藤田 訓裕, 爲重 雄司, 松原 礼明, 坂口 治隆, 寺嶋 知, 安田 裕介, 竹田 浩之, 内田 誠, Hillhouse G.C.

    日本物理学会講演概要集   2006.3

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  • 30pWD-2 Ca(p,2p)反応を用いたS_<1/2>,d_<3/2>,d_<5/2>エネルギー準位のisotope依存性(30pWD 軽イオン,実験核物理領域)

    永末 勇治, 野呂 哲夫, 若狭 智嗣, 吉田 英智, 石田 孝司, 浅地 瞬, 竹田 英光, 堂園 昌伯, 山田 由希子, 畑中 吉治, 酒見 泰寛, 民井 淳, 清水 陽平, 藤田 訓裕, 為重 雄司, 松原 礼明, 坂口 治隆, 安田 祐介, 寺嶋 知, 銭廣 十三, 岩尾 快彦, 竹田 浩之, 大塚 孝治

    日本物理学会講演概要集   2006.3

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  • 27aWD-5 重陽子を用いた弱束縛粒子クーロン分解の反応機構の研究(27aWD 理論核物理領域,実験核物理領域合同 不安定核・天体核,理論核物理領域)

    岡村 弘之, 須田 健嗣, 熊坂 弘一, 鈴木 涼子, 池田 拓一郎, 伊藤 圭介, 上坂 友洋, 矢向 謙太郎, 酒井 英行, 民井 淳, 前田 幸重, 斎藤 孝明, 関口 仁子, 畑中 吉治, 若狭 智嗣

    日本物理学会講演概要集   2006.3

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  • Fine structure of the Gamow-Teller resonance in Nb-90 and level density of 1(+) states

    Y Kalmykov, T Adachi, GPA Berg, H Fujita, K Fujita, Y Fujita, K Hatanaka, J Kamiya, K Nakanishi, P von Neumann-Cosel, VY Ponomarev, A Richter, N Sakamoto, Y Sakemi, A Shevchenko, Y Shimbara, Y Shimizu, FD Smit, T Wakasa, J Wambach, M Yosoi

    PHYSICAL REVIEW LETTERS   2006.1

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    DOI: 10.1103/PhysRevLett.96.012502

  • Unified analysis of spin isospin responses of nuclei

    T Wakasa, M Ichimura, H Sakai

    PHYSICAL REVIEW C   2005.12

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    DOI: 10.1103/PhysRevC.72.067303

  • Resolving the discrepancy of 135 MeV pd elastic scattering cross sections and relativistic effects

    K Sekiguchi, H Sakai, H Witala, W Glockle, J Golak, K Hatanaka, M Hatano, K Itoh, H Kamada, H Kuboki, Y Maeda, A Nogga, H Okamura, T Saito, N Sakamoto, Y Sakemi, M Sasano, Y Shimizu, K Suda, A Tamii, T Uesaka, T Wakasa, K Yako

    PHYSICAL REVIEW LETTERS   2005.10

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    DOI: 10.1103/PhysRevLett.95.162301

  • Performance of the neutron polarimeter NPOL3 for high resolution measurements

    T Wakasa, Y Hagihara, M Sasano, S Asaji, K Fujita, K Hatanaka, T Ishida, T Kawabata, H Kuboki, Y Maeda, T Noro, T Saito, H Sakai, Y Sakemi, K Sekiguchi, Y Shimizu, A Tamii, Y Tameshige, K Yako

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT   2005.8

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    DOI: 10.1016/j.nima.2005.03.151

  • Determination of the Gamow-Teller quenching factor from charge exchange reactions on Zr-90

    K Yako, H Sakai, MB Greenfield, K Hatanaka, M Hatano, J Kamiya, H Kato, Y Kitamura, Y Maeda, CL Morris, H Okamura, J Rapaport, T Saito, Y Sakemi, K Sekiguchi, Y Shimizu, K Suda, A Tamii, N Uchigashima, T Wakasa

    PHYSICS LETTERS B   2005.6

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    DOI: 10.1016/j.physletb.2005.04.032

  • 25aWH-4 ^<28>Si(p^^→,n^^→)^<28>P(6^-,T=1)反応における全偏極移行量測定(軽イオン核反応,実験核物理)

    荻原 洋右, 若狭 智嗣, 野呂 哲夫, 石田 泰司, 浅地 瞬, 永末 勇治, 畑中 吉治, 酒見 泰寛, 民井 淳, 清水 陽平, 藤田 訓裕, 為重 雄司, 酒井 英行, 久保木 浩功, 笹野 匡紀

    日本物理学会講演概要集   2005.3

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  • Evidence of a Pionic Enhancement Observed in $^{16}O(p,p') ^{16}O(0^-,T=1)$ at 295 MeV

    T. Wakasa, G. P. A. Berg, H. Fujimura, K. Fujita, K. Hatanaka, M. Ichimura, M. Itoh, J. Kamiya, T. Kawabata, Y. Kitamura, E. Obayashi, H. Sakaguchi, N. Sakamoto, Y. Sakemi, Y. Shimizu, H. Takeda, M. Uchida, Y. Yasuda, H. P. Yoshida, M. Yosoi

    2004.12

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    Evidence of a Pionic Enhancement Observed in $^{16}O(p,p') ^{16}O(0^-,T=1)$ at 295 MeV
    The cross section of the ${}^{16}{
    m O}(p,p&#039;){}^{16}{
    m O}(0^-,T=1)$<br />
    scattering was measured at a bombarding energy of 295 MeV in the momentum<br />
    transfer range of $1.0 mathrm{fm^{-1 } }$ $le$ $q_{
    m c.m.}$ $le$ $2.1<br />
    mathrm{fm^{-1 } }$.<br />
    The isovector $0^-$ state at $E_x$ = 12.8 MeV is clearly separated from its<br />
    neighboring states owing to the high energy resolution of about 30 keV.<br />
    The cross section data were compared with distorted wave impulse<br />
    approximation (DWIA) calculations employing shell-model wave functions.<br />
    The observed cross sections around $q_{
    m c.m.}$ $simeq$ $1.7 {
    m<br />
    ...

  • Isovector and isoscalar spin-flip M1 strengths in B-11

    T Kawabata, H Akimune, H Fujimura, H Fujita, Y Fujita, M Fujiwara, K Hara, KY Hara, K Hatanaka, T Ishikawa, M Itoh, J Kamiya, S Kishi, M Nakmura, K Nakanishi, T Noro, H Sakaguchi, Y Shimbara, H Takeda, A Tamii, S Terashima, H Toyokawa, M Uchida, H Ueno, T Wakasa, Y Yasuda, HP Yoshida, M Yosoi

    PHYSICAL REVIEW C   2004.9

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    DOI: 10.1103/PhysRevC.70.034318

  • 28aSA-10 偏極 ^3He 標的偏極度の絶対値較正(データ収集・イオン源・ターゲット, 実験核物理)

    伊藤 圭介, 清水 陽平, 為重 雄司, 畑中 吉治, 酒見 泰寛, 民井 淳, 吉田 英智, 藤田 訓裕, 上坂 友洋, 涌井 崇志, 川畑 貴裕, 若狭 智嗣, 工藤 隆, 大平 仁美

    日本物理学会講演概要集   2004.8

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  • 27aSA-2 200MeV 重陽子-陽子散乱を用いた 3 体力の研究(軽イオン・エキゾチックアトム, 実験核物理)

    為重 雄司, 畑中 吉治, 酒見 泰寛, 民井 淳, 吉田 英智, 清水 陽平, 藤田 訓裕, 酒井 英行, 矢向 謙太郎, 久保木 浩功, 笹野 匡紀, 前田 幸重, 関口 仁子, 相良 建至, 若狭 智嗣, 工藤 隆, 大平 仁美, 富山 瑞穂, Witala H, 塩田 理人, 下本 進介

    日本物理学会講演概要集   2004.8

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  • 30pZB-7 (^3He,t)高分解能反応を用いたfp核殻の換算遷移強度の測定(軽イオン)(実験核物理)

    足立 竜也, Berg G.P.A., Brentano P.von, Defrenne D, Fransen C, 藤田 浩彦, 藤田 訓裕, 藤田 佳孝, 畑中 吉治, Jacobs E, 神谷 潤一郎, 川瀬 啓吾, 中西 康介, Negret A, 小蒲 健夫, Pietrallra N, Popescu L, 酒見 泰寛, 新原 佳弘, 清水 陽平, 為重 雄司, 民井 淳, 内田 誠, 若狭 智嗣, 與曽井 優

    日本物理学会講演概要集   2004.3

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  • 30pZB-1 200MeVでのd+p→(pn)^1s_0+pおよびdp弾性散乱を用いた3体力の研究(軽イオン)(実験核物理)

    爲重 雄司, 畑中 吉治, 酒見 泰寛, 民井 淳, 吉田 英智, 清水 陽平, 藤田 訓裕, 酒井 英行, 矢向 謙太郎, 前田 幸重, 久保木 浩功, 笹野 匡紀, 関口 仁子, 相良 建至, 若狭 智嗣, 工藤 隆, 塩田 理人, 下本 進介, 大平 仁美, 富山 瑞穂, Witala H

    日本物理学会講演概要集   2004.3

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  • 30pZB-12 300MeVでのガモフ・テラー単位断面積の精密測定(軽イオン)(実験核物理)

    笹野 匡紀, 矢向 謙太郎, 齋藤 孝明, 若狭 智嗣, 萩原 洋右, 畑中 吉次, 酒見 泰寛, 民井 淳, 藤田 佳孝, 関口 仁子, 岡村 弘之, 酒井 英行

    日本物理学会講演概要集   2004.3

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  • 30pZB-3 陽子-重陽子散乱における超狭幅ダイバリオンの探索(軽イオン)(実験核物理)

    久保木 浩功, 民井 淳, 酒井 英行, 矢向 謙太郎, 波田野 道夫, 前田 幸重, 齋藤 孝明, 石田 智之, 畑中 吉治, 酒見 泰寛, 神谷 潤一郎, 清水 陽平, 藤田 訓裕, 上坂 友洋, 関口 仁子, 相良 建至, 工藤 隆, 塩田 理人, 下本 進介, 若狭 智嗣, Filkov L.V, Kashevarov V.L, Konobeevski E.S, Mordovskoy M.V, Potashev S.I

    日本物理学会講演概要集   2004.3

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  • 30pZB-6 p-d Capture反応A_<xx> Anomalyのエネルギー依存性測定(軽イオン)(実験核物理)

    工藤 隆, 相良 建至, 若狭 智嗣, 塩田 理人, 下本 進介, 大平 仁美, 冨山 瑞穂, 畑中 吉治, 民井 淳, 酒見 泰寛, 吉田 秀智, 藤田 訓裕, 清水 陽平, 為重 雄司, 久保木 浩功

    日本物理学会講演概要集   2004.3

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  • Evidence for the existence of the [202]3/2 deformed band in mirror nuclei Mg-25 and Al-25

    Y Fujita, Hamamoto, I, H Fujita, Y Shimbara, T Adachi, GPA Berg, K Fujita, K Hatanaka, J Kamiya, K Nakanishi, Y Sakemi, Y Shimizu, M Uchida, T Wakasa, M Yosoi

    PHYSICAL REVIEW LETTERS   2004.2

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    DOI: 10.1103/PhysRevLett.92.062502

  • Suppression of Gamow-Teller and M1 transitions in deformed mirror nuclei Mg-25 and Al-25 - Direct observation of K selection rules

    Y Shimbara, Y Fujita, T Adachi, GPA Berg, H Fujita, K Fujita, Hamamoto, I, K Hatanaka, J Kamiya, K Nakanishi, Y Sakemi, Y Shimizu, M Uchida, T Wakasa, M Yosoi

    EUROPEAN PHYSICAL JOURNAL A   2004.1

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    DOI: 10.1140/epja/i2003-10115-2

  • 12pSF-5 392 MeV (p, 2p) 反応を用いた ^<40>Ca 深部空孔状態の測定

    安田 裕介, 坂口 治隆, 與曽井 優, 寺嶋 知, 岸 智史, 野呂 哲夫, 若狭 智嗣, 石田 孝史, 浅地 瞬, 米村 孝久, 畑中 吉治, 酒見 泰寛, 伊藤 正俊, 吉田 英智, 内田 誠, 清水 陽平, 藤田 訓裕, 為重 雄司, 竹田 浩之, 川畑 貴裕

    日本物理学会講演概要集   2003.8

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  • New capabilities of the Grand Raiden spectrometer

    T Wakasa, GPA Berg, H Fujita, Y Fujita, K Hatanaka, K Hara, M Itoh, J Kamiya, T Kawabata, K Nagayama, T Noro, H Sakaguchi, Y Shimbara, Y Shinada, H Takeda, K Tamura, H Ueno, M Uchida, M Uraki, M Yosoi

    NUCLEAR PHYSICS A   2003.6

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    DOI: 10.1016/S0375-9474(03)01294-6

  • Resonance states in Mg-22 for reaction rates in the rp-process

    GPA Berg, K Hatanaka, M Wiescher, H Schatz, T Adachi, AD Bacher, CC Foster, Y Fujita, H Fujita, K Fujita, J Gorres, C Herman, J Kamiya, N Sakamoto, Y Sakemi, Y Shimbara, Y Shimizu, EJ Stephenson, T Wakasa, M Yosoi

    NUCLEAR PHYSICS A   2003.5

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    DOI: 10.1016/S0375-9474(03)00900-X

  • 31pSC-9 中間エネルギー高分解能 ^<37>Cl(^3He, t)^<37>Ar 反応によるガモフ・テラー状態の研究

    新原 佳弘, 藤田 佳孝, 足立 竜也, Berg G. P. A., 藤田 浩彦, 藤田 訓裕, 畑中 吉治, 神谷 潤一郎, 中西 康介, 阪本 尚己, 酒見 泰寛, 清水 陽平, 為重 雄司, 内田 誠, 若狭 智嗣, 與曽井 優

    日本物理学会講演概要集   2003.3

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  • 31pSC-6 E_p^^^→=250MeV での pd breakup 反応断面積及び Ay 測定

    工藤 隆, 相良 建至, 野呂 哲夫, 石田 孝司, 野副 信也, 塩田 理人, 下本 進介, 浅地 瞬, 米村 孝久, 畑中 吉治, 若狭 智嗣, 酒見 泰寛, 吉田 秀智, 神谷 潤一郎, 清水 陽平, 民井 淳

    日本物理学会講演概要集   2003.3

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  • Three-body dN interaction in the analysis of the 12C(d, d′) reaction at 270 MeV

    Y. Satou, S. Ishida, H. Sakai, H. Okamura, N. Sakamoto, H. Otsu, T. Uesaka, A. Tamii, T. Wakasa, T. Ohnishi, K. Sekiguchi, K. Yako, K. Suda, M. Hatano, H. Kato, Y. Maeda, J. Nishikawa, T. Ichihara, T. Niizeki, H. Kamada, W. Glöckle, H. Witała

    2002.12

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    We have measured the cross sections and analyzing powers Ay and Ayy for the elastic and inelastic scattering of deuterons from the 0+(g.s.), 2+(4.44 MeV), 3-(9.64 MeV), 1+(12.71 MeV), and 2-(18.3 MeV) states in 12C at an incident energy of 270 MeV. The data are compared with microscopic distorted-wave impulse approximation calculations where the projectile-nucleon effective interaction is taken from the three-nucleon t-matrix given by rigorous Faddeev calculations presently available at intermediate energies. The agreement between theory and data compares well with that for the (p, p′) reactions at comparable incident energies/nucleon. © 2002 Elsevier Science B.V. All rights reserved.

    DOI: 10.1016/S0370-2693(02)02957-X

  • 27aWF-7 293MeVにおける^<90>Zr(n, p)反応測定によるガモフテラー和則値の決定

    矢向 謙太郎, 酒井 英行, 内ヶ島 暢之, 岡村 弘之, 神谷 潤一郎, 北村 安之, 斎藤 孝明, 清水 陽平, 須田 健嗣, 関口 仁子, 民井 淳, 畑中 吉治, 波田野 道夫, 前田 幸重, 若狭 智嗣, M.B Greenfield, C.L Morris, J Rapaport

    日本物理学会講演概要集   2002.3

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  • 27aWF-13 ^<12>C(d^^→, α)^<10>B[2^+]反応を用いた中間エネルギー重陽子ビーム偏極度の絶対値較正

    須田 健嗣, 岡村 弘之, 上坂 友洋, 熊坂 弘一, 鈴木 涼子, 酒井 英行, 民井 淳, 関口 仁子, 矢向 謙太郎, 齋藤 孝明, 石田 智之, 坂本 成彦, 佐藤 義輝, 畑中 吉治, 若狭 智嗣, 神谷 潤一郎

    日本物理学会講演概要集   2002.3

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  • 27aWF-5 重陽子-陽子弾性散乱の偏極移行量測定と三体力

    関口 仁子, 酒井 英行, 岡村 弘之, 民井 淳, 坂本 成彦, 上坂 友洋, 若狭 智嗣, 佐藤 義輝, 大西 哲哉, 矢向 謙太郎, 須田 健嗣, 迫田 誠太郎, 加藤 裕充, 前田 幸重, 波田野 道夫, 西川 純, 齋藤 孝明, 内ケ島 暢之, N Karantar-Nayestanaki E, K Ermish E

    日本物理学会講演概要集   2002.3

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  • 27aWF-6 Ep=400MeVのおけるp+d弾性散乱の測定

    内ヶ島 暢之, 民井 淳, 酒井 英行, 畑中 吉次, 岡村 弘之, 若狭 智嗣, 上坂 友洋, 矢向 謙太郎, 関口 仁子, 神谷 潤一郎, 須田 健嗣, 波田野 道夫, 前田 幸重, 西川 純, 齋藤 孝明, 清水 陽平, 北村 安之, 石田 智之

    日本物理学会講演概要集   2002.3

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  • Analyzing power of the ${vec p}p o ppπ^0$ reaction at beam energy of 390 MeV

    2001.12

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    The analyzing power of ${vec p}p o pp{pi}^0$ reaction has been measured at<br />
    the beam energy of 390 MeV. The missing mass technique of final protons has<br />
    been applied to identify the $pi^0$ production event. The dependences of the<br />
    analyzing power on the pion emission-angle and the relative momentum of the<br />
    protons have beenobtained. The angular dependence could be decomposed by the<br />
    Legendre polynomial and the relative contribution of the $P_{21}$ to $P_{11}$<br />
    function is less than 20%. The P-state amplitude is found to be the dominant<br />
    component of the $pi$ production near the threshold. The...

  • 27aSG-4 197MeV^<12>C(p,n)^<12>N反応のGSDR領域のMDA

    齋藤 孝明, 酒井 英行, 若狭 智嗣

    日本物理学会講演概要集   2001.3

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  • 27aSG-1 300MeVにおける高分解能(p,n)反応測走のテスト実験

    内ヶ島 暢之, 酒井 英行, 畑中 吉治, 岡村 弘之, 民井 淳, 若狭 智嗣, 矢向 謙太郎, 関口 仁子, 迫田 誠太郎, 神谷 潤一郎, 須田 健嗣, 加藤 裕充, 波田野 道夫, 前田 幸重, 齋藤 孝明

    日本物理学会講演概要集   2001.3

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  • 27aSG-2 p+d散乱による狭幅ダイバリオンの探索

    民井 淳, 内ヶ島 暢之, 酒井 英行, 矢向 謙太郎, 関口 仁子, 迫田 誠太郎, 加藤 裕充, 前田 幸重, 波田野 道夫, 齋藤 孝明, 畑中 吉次, 若狭 智嗣, 神谷 潤一郎, 広岡 大輔, 上坂 友洋

    日本物理学会講演概要集   2001.3

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  • Thin ice target for 16O(p,p′) experiment

    2001.2

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    A method to prepare a windowless, self-supporting and low-cost ice target is described. The produced target was successfully used to measure the spectra of inelastic proton scattering from 16O. An ice target of about 30 mg/cm2 worked stably. The target thickness was monitored for 7 hours by measuring p+p elastic scattering and no meaningful variation of the thickness was observed. No obvious effect of contaminations due to the congelation of residual gases on the target was detected. Since a thin ice target was made, measurements of charged decay particles in coincidence with inelastically scattered particles are possible.

    DOI: 10.1016/S0168-9002(00)00992-X

  • 25pYR-5 12C高励起連続状態における重陽子偏極移行測定

    加藤 裕充, 佐藤 義輝, 酒井 英行, 民井 淳, 関口 仁子, 矢向 謙太郎, 迫田 誠太郎, 波田野 道夫, 前田 幸重, 坂本 成彦, 伊藤 和也, 大西 哲哉, 岡村 弘之, 上坂 友洋, 須田 健嗣, 西川 純, 若狭 智嗣

    日本物理学会講演概要集   2000.9

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  • 24pYR-9 200MeV偏極重陽子ビーム用ポラリメータの開発

    八木田 貴典, 相良 建至, 近藤 信, 南 茂之, 石田 孝司, 畑中 吉治, 若狭 智嗣, 神谷 潤一郎, 廣岡 大輔, 野呂 哲夫, 吉田 英智, 大林 恵美, 高久 圭二, 吉村 政人, 秋吉 啓充

    日本物理学会講演概要集   2000.9

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  • 25aYR-10 1 GeV陽子ビームを用いた^<6>Li, ^<12>C, ^<40>Ca(p, 2p)反応の測定

    安田 裕介, 坂口 治隆, 竹田 浩之, 野呂 哲夫, 畑中 吉治, 若狭 智嗣, 吉田 英智, 大林 恵美, 神谷 潤一郎, Miklukho O. V.

    日本物理学会講演概要集   2000.9

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  • Precise measurement of dp elastic scattering at 270 MeV and three-nucleon force effects

    H Sakai, K Sekiguchi, H Witala, W Glockle, M Hatano, H Kamada, H Kato, Y Maeda, A Nogga, T Ohnishi, H Okamura, N Sakamoto, S Sakoda, Y Satou, K Suda, A Tamii, T Uesaka, T Wakasa, K Yako

    PHYSICAL REVIEW LETTERS   2000.6

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    DOI: 10.1103/PhysRevLett.84.5288

  • 31aSA-4 中間エネルギー領域における重陽子-陽子弾性散乱の微分断面積、及び偏極分解能の測定

    関口 仁子, 酒井 英行, 岡村 弘之, 坂本 成彦, 民井 淳, 上坂 友洋, 若狭 智嗣, 佐藤 義輝, 大西 哲哉, 矢向 謙太郎, 福坂 将一, 迫田 誠太郎, 須田 健嗣, 加藤 裕充, 前田 幸重, 波田野 道夫, 西川 純, 伊藤 和也, 新関 隆

    日本物理学会講演概要集   2000.3

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  • 1aSB-3 RCNPにおける(n,p)実験施設の建設

    前田 幸重, 酒井 英行, 畑中 吉治, 岡村 弘之, 民井 淳, 若狭 智嗣, 矢向 謙太郎, 関口 仁子, 迫田 誠太郎, 神谷 潤一郎, 須田 健嗣, 加藤 裕充, 波田野 道夫, 広岡 大輔, Greenfield M. B.

    日本物理学会講演概要集   2000.3

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  • 31aSA-3 270MeV偏極重陽子、陽子散乱における偏極移行量測定

    加藤 裕充, 酒井 英行, 民井 淳, 大西 哲哉, 関口 仁子, 矢向 謙太郎, 福坂 将一, 迫田 誠太郎, 波田野 道夫, 前田 幸重, 坂本 成彦, 佐藤 義輝, 伊藤 和也, 岡村 弘之, 上坂 友洋, 須田 健嗣, 若狭 智嗣

    日本物理学会講演概要集   2000.3

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  • Reaction mechanism and characteristics of T_{20} in d + ^3He backward elastic scattering at intermediate energies

    M. Tanifuji, S. Ishikawa, Y. Iseri, T. Uesaka, N. Sakamoto, Y. Satou, K. Itoh, H. Sakai, A. Tamii, T. Ohnishi, K. Sekiguchi, K. Yako, S. Sakoda, H. Okamura, K. Suda, T. Wakasa

    Phys.Rev. C61 (2000) 024602   1999.11

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    Reaction mechanism and characteristics of T_{20} in d + ^3He backward elastic scattering at intermediate energies
    For backward elastic scattering of deuterons by ^3He, cross sections sigma<br />
    and tensor analyzing power T_{20} are measured at E_d=140-270 MeV. The data are<br />
    analyzed by the PWIA and by the general formula which includes virtual<br />
    excitations of other channels, with the assumption of the proton transfer from<br />
    ^3He to the deuteron. Using ^3He wave functions calculated by the Faddeev<br />
    equation, the PWIA describes global features of the experimental data, while<br />
    the virtual excitation effects are important for quantitative fits to the<br />
    T_{20} data. Theoretical predictions on T_{20}, K_y^y (polarizatio...

    DOI: 10.1103/PhysRevC.61.024602

  • 26aSK-2 重陽子-ヘリウム3後方弾性散乱の偏極量

    石川 壮一, 谷藤 悃, 井芹 康統, 上坂 友洋, 坂本 成彦, 佐藤 義輝, 伊藤 和也, 酒井 英行, 民井 淳, 大西 哲哉, 関口 仁子, 矢向 謙太郎, 迫田 誠太郎, 岡村 弘之, 須田 健嗣, 若狭 智嗣

    日本物理学会講演概要集   1999.9

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  • 23aSK-10 (p, 2p)反応によるS-factorの決定

    大林 恵美, 野呂 哲夫, 藤村 寿子, 畑中 吉治, 石川 貴嗣, 伊藤 正俊, 神谷 潤一郎, 川畑 貴裕, 前田 嘉一, 松岡 伸行, 中村 正信, 坂口 治隆, 竹田 浩之, 民井 淳, 瀧 伴子, 田村 圭介, 塚原 尚彦, 内田 誠, 若狭 智嗣, 吉田 英智, 吉村 政人, 奥曽井 優

    日本物理学会講演概要集   1999.9

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  • Measurement of a complete set of analyzing powers for deuteron elastic scattering from Ca-40 at 270 MeV and an investigation of tensor potentials (vol 438, pg 27, 1998)

    T Ohnishi, H Sakai, H Okamura, S Ishida, H Otsu, N Sakamoto, T Uesaka, T Wakasa, Y Satou, S Fujita, T Nonaka, EJ Stephenson

    PHYSICS LETTERS B   1999.7

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  • 29a-PS-117 ^<12>C(p^^→, ^<12>N^^→)n反応によって作られたβ放射核12^Nの様々な標的核中での減偏極度の測定

    迫田 誠太郎, 酒井 英行, 福坂 将一, 神谷 潤一郎, 岡村 弘之, 大西 哲哉, 関口 仁子, 民井 淳, 若狭 智嗣, 矢向 謙太郎, 横山 剛, 畑中 吉治

    日本物理学会講演概要集   1999.3

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  • 28a-YJ-3 E_d=270MeVにおける重陽子-陽子弾性散乱の微分断面積、及び偏極分解能の測定

    関口 仁子, 酒井 英行, 岡村 弘之, 坂本 成彦, 民井 淳, 上坂 友洋, 若狭 智嗣, 佐藤 義輝, 大西 哲哉, 矢向 謙太郎, 福坂 将一, 迫田 誠太郎, 須田 健嗣, 加藤 裕充, 前田 幸重, 伊藤 和也, 新関 隆

    日本物理学会講演概要集   1999.3

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  • 28a-YJ-8 <28>^Si(p^^→, n^^→)<28>^P(6^-)反応を用いた核内相互作用の研究II

    矢向 謙太郎, 酒井 英行, 岡村 弘之, 若狭 智嗣, 民井 淳, 大津 秀暁, 大西 哲哉, 野中 敬正, 福坂 将一, 関口 仁子, 迫田 誠太郎, 畑中 吉治

    日本物理学会講演概要集   1999.3

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  • 6a-J-6 中間エネルギー(p,n)反応の偏極移行量測定による原子核スピン応答関数の研究

    若狭 智嗣

    日本物理学会講演概要集   1998.9

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  • 4p-D-1 (p^^→,pp^^→)反応による核内核子間相互作用の研究のための焦点面ポラリメーターの開発

    吉田 英智, 秋宗 秀俊, 大東 出, 藤村 寿子, 畑中 吉次, 井原 史智, 石川 貴嗣, 伊藤 正俊, 神谷 潤一郎, 川畑 貴裕, 前田 嘉一, 松岡 伸行, 野呂 哲夫, 大林 恵美, 坂口 治隆, 竹田 浩之, 瀧 伴子, 民井 淳, 田村 圭介, 若狭 智嗣, 吉村 政人, 興曽井 優

    日本物理学会講演概要集   1998.9

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  • 30a-G-3 E_d = 270 MeV における^<28>Si(d^^→,<d'>^^^→)反応の測定

    佐藤 義輝, 石田 悟, 酒井 英行, 岡村 弘之, 坂本 成彦, 大津 秀暁, 上坂 友洋, 若狭 智嗣, 野中 敬正, 大西 哲哉, 横山 剛, 関口 仁子, 矢向 謙太郎, 福坂 将一, 伊藤 和也, 市原 卓, 新関 隆, 畑中 吉治

    日本物理学会講演概要集   1998.3

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  • 30a-G-1 ^<28>Si(p^^→,n^^→)^<28>P(6^-)反応を用いた核内相互作用の研究

    矢向 謙太郎, 酒井 英行, 岡村 弘之, 若狭 智嗣, 大津 秀暁, 野中 敬正, 福坂 将一, 関口 仁子, 畑中 吉治

    日本物理学会講演概要集   1998.3

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  • 30a-G-2 ^<90>Zr(p,n)反応の全スピン移行及びパリティ分離

    若狭 智嗣, 酒井 英行, 岡村 弘之, 大津 秀暁, 野中 敬正, 大西 哲哉, 矢向 謙太郎, 関口 仁子, 藤田 哲史, 上坂 友洋, 佐藤 義輝, 石田 悟, 坂本 成彦, GREENFIELD M.B, 畑中 吉治

    日本物理学会講演概要集   1998.3

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  • 21a-D-5 ^<12>C(d, d')反応におけるスピン移行量の測定

    石田 悟, 佐藤 義輝, 酒井 英行, 岡村 弘之, 大津 秀暁, 坂本 成彦, 上坂 友洋, 若狭 智嗣, 大西 哲哉, 野中 敬正, 横山 剛, 新関 隆, 市原 卓, 畑中 吉治, 西森 信行

    日本物理学会講演概要集   1997.9

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  • Gamow-Teller型巨大共鳴クエンチング問題の決着

    酒井 英行, 若狭 智嗣

    日本物理學會誌   1997.6

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  • 28p-YT-8 sd殻核のスピンアイソスピン励起

    新関 隆, 大沼 甫, 酒井 英行, 岡村 弘之, 上坂 友洋, 若狭 智嗣, 佐藤 義輝, 市原 卓, 石田 悟, 坂本 成彦, 大津 秀暁, 伊藤 和也, 織原 彦之丞

    日本物理学会講演概要集   1997.3

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  • 28p-YT-2 ^2H(p^^→, n^^→)pp反応におけるスピン偏極移行量の測定

    野中 敬正, 酒井 英行, 岡村 弘之, 大津 秀暁, 若狭 智嗣, 石田 悟, 坂本 成彦, 上坂 友洋, 佐藤 義輝, 大西 哲哉, 横山 剛, 畑中 吉治

    日本物理学会講演概要集   1997.3

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  • 8a-G-7 準弾性散乱の全偏極移行量測定

    若狭 智嗣, 酒井 英行, 岡村 弘之, 大津 秀暁, 藤田 哲史, 野中 敬正, 石田 悟, 坂本 成彦, 上坂 友洋, 佐藤 義輝, 大西 哲也, Yokoyama G., Greenfield M.B., 畑中 吉治

    日本物理学会講演概要集. 秋の分科会   1996.9

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  • Measurement of the vector and tensor analyzing powers for the d-p elastic scattering at E(d)=270 MeV

    N Sakamoto, H Okamura, T Uesaka, S Ishida, H Otsu, T Wakasa, Y Satou, T Niizeki, K Katoh, T Yamashita, K Hatanaka, Y Koike, H Sakai

    PHYSICS LETTERS B   1996.1

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    DOI: 10.1016/0370-2693(95)01398-9

  • 30a-SF-3 重陽子偏極度計DPOLの開発と現状II : 非弾性散乱偏極移行測定に向けて

    佐藤 義輝, 石田 悟, 酒井 英行, 岡村 弘之, 大津 秀暁, 坂本 成彦, 上坂 友洋, 若狭 智嗣, 藤田 哲史, 新関 隆, 市原 卓, 畑中 吉治, 西森 信行, 大西 哲哉, 野中 敬正

    日本物理学会講演概要集. 秋の分科会   1995.9

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  • 27p-SF-3 中間エネルギーにおける重陽子弾性分解反応

    岡村 弘之, 酒井 英行, 石田 悟, 坂本 成彦, 大津 秀暁, 上坂 友洋, 若狭 智嗣, 大沼 甫, 新関 隆, 田島 靖久, 市原 卓, 與曽井 優, 豊川 秀訓, 畑中 吉治

    日本物理学会講演概要集. 秋の分科会   1995.9

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  • SPIN-FLIP STRENGTH IN THE CONTINUUM AND EFFECTIVE TENSOR INTERACTIONS VIA POLARIZATION TRANSFER D-NN(0-DEGREES) FOR ((P)OVER-RIGHT-ARROW,(N)OVER-RIGHT-ARROW) REACTIONS AT 295-MEV

    T WAKASA, H SAKAI, H OKAMURA, H OTSU, S ISHIDA, N SAKAMOTO, T UESAKA, Y SATOU, MB GREENFIELD, N KOORI, A OKIHANA, K HATANAKA

    PHYSICAL REVIEW C   1995.6

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  • 31p-P-4 重陽子エネルギー270MeVにおける^<27>Al(d, ^2He)反応

    新関 隆, 大沼 甫, 加藤 健一, 山下 利幸, 酒井 英行, 岡村 弘之, 石田 悟, 坂本 成彦, 大津 秀暁, 上坂 友洋, 若狭 智嗣, 佐藤 義輝, 藤田 哲史, 市原 卓, 織原 彦之丞, 與曽井 優

    日本物理学会講演概要集. 年会   1995.3

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  • 30p-R-13 RCNP中性子実験室におけるスウィンガー -NSRシステム

    藤田 哲史, 酒井 英行, 畑中 吉治, 岡村 弘之, 石田 悟, 大津 秀暁, 坂本 成彦, 上坂 友洋, 若狭 智嗣, 佐藤 義輝

    日本物理学会講演概要集. 年会   1995.3

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  • 31p-P-3 (p, p')準弾性散乱反応の偏極分解能測定

    大津 秀暁, 酒井 英行, 畑中 吉治, 藤田 哲史, Greenfield M.B., 石田 悟, 桑折 範彦, 岡村 弘之, 沖 花彰, 坂本 成彦, 佐藤 義輝, 上坂 友洋, 若狭 智嗣

    日本物理学会講演概要集. 年会   1995.3

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  • TENSOR ANALYZING POWER OF THE (D,HE-2)-REACTION AT 270-MEV

    H OKAMURA, S FUJITA, Y HARA, K HATANAKA, T ICHIHARA, S ISHIDA, K KATOH, T NIIZEKI, H OHNUMA, H OTSU, H SAKAI, N SAKAMOTO, Y SATOU, T UESAKA, T WAKASA, T YAMASHITA

    PHYSICS LETTERS B   1995.2

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    DOI: 10.1016/0370-2693(94)01607-E

  • 30p-PSA-29 (d, ^2He)反応による軽い核のスピン・アイソスピン励起 II

    新関 隆, 大沼 甫, 加藤 健一, 山下 利幸, 酒井 英行, 岡本 弘之, 石田 悟, 坂本 成彦, 大津 秀暁, 上坂 友洋, 若狭 智嗣, 佐藤 義輝, 市原 卓, 織原 彦之丞, 與曽井 優

    日本物理学会講演概要集. 秋の分科会   1994.9

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  • 30p-PSA-23 偏極移行量D_<NN>(0°)測定による原子核のスピン・アイソスピン励起

    日本物理学会講演概要集. 秋の分科会   1994.9

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  • 30p-PSA-24 中間エネルギー(E_p≧300MeV)の(p, n)反応で観測された異常なバンプ

    酒井 英行, 岡村 弘之, 大津 秀暁, 若狭 智嗣, 佐藤 義輝, 藤田 哲史, 畑中 吉治, Prout D

    日本物理学会講演概要集. 秋の分科会   1994.9

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  • 30p-PSA-28 270 MeV^<12>C(d, ^2He)^<12>B 反応のテンソル偏極分解能

    岡村 弘之, 酒井 英行, 石田 悟, 坂本 成彦, 大津 秀暁, 上坂 友洋, 若狭 智嗣, 佐藤 義輝, 藤田 哲史, 大沼 甫, 新関 隆, 加藤 健一, 山下 利幸, 原 洋介, 市原 卓, 畑中 吉治

    日本物理学会講演概要集. 秋の分科会   1994.9

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  • 28a-Y-7 (p, n)準弾性散乱反応の偏極分解能測定

    大津 秀暁, 石田 悟, 上坂 友洋, 岡村 弘之, 沖花 彰, 上垣外 修一, Greenfield M.B, 桑折 範彦, 酒井 英行, 坂本 成彦, 佐藤 義輝, 畑中 吉治, 藤田 哲史, 若狭 智嗣

    日本物理学会講演概要集. 年会   1994.3

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  • 28a-Y-3 d+p弾性散乱(E_d=270MeV)の偏極分解能の完全測定

    坂本 成彦, 石田 悟, 酒井 英行, 岡村 弘之, 大津 秀暁, 佐藤 義輝, 上坂 友洋, 若狭 智嗣, 加藤 健一, 新関 隆, 山下 利幸, 畑中 吉治

    日本物理学会講演概要集. 年会   1994.3

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  • 4p-J-12 重陽子弾性散乱(E_d=270MeV)の偏極分解能測定

    上坂 友洋, 酒井 英行, 岡村 弘之, 石田 悟, 坂本 成彦, 大津 秀暁, 若狭 智嗣, 市原 卓, 矢野 安重, 畑中 吉治, 大沼 甫, 新関 隆, 山本 琢久

    日本物理学会講演概要集. 秋の分科会   1993.9

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  • 4a-J-2 ^6Li, ^<11>B, ^<12>C, ^<13>C(p^^→, n^^→)反応における偏極移行量D_<NN>(0°)の測定

    若狭 智嗣, 酒井 英行, 畑中 吉治, 岡村 弘之, 石田 悟, 大津 秀暁, 坂本 成彦, 上坂 友洋, 佐藤 義輝, 沖花 彰, 桑折 範彦, Greenfield M.B.

    日本物理学会講演概要集. 秋の分科会   1993.9

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  • 4a-J-3 ^<26>Mg(p, nγ)^<26>Al(1^+;1.06MeV)反応におけるスピン反転確率の測定(E_p=35MeV,θ_<lab.>=30°)

    佐藤 義輝, 藤高 伸一郎, 若狭 智嗣, 上坂 友洋, 石田 悟, 岡村 弘之, 酒井 英行

    日本物理学会講演概要集. 秋の分科会   1993.9

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  • 4p-J-1 (d, ^2He)反応による軽い核のスピン・アイソスピン励起

    新関 隆, 山本 琢久, 加藤 健一, 大沼 甫, 酒井 英行, 岡村 弘之, 石田 悟, 坂本 成彦, 大津 秀暁, 若狭 智嗣, 上坂 友洋, 市原 卓, 織原 彦之丞, 保阪 将人, 興曽井 優, 加藤 静吾

    日本物理学会講演概要集. 秋の分科会   1993.9

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  • 31p-ZQ-6 理研SMARTスペクトログラフでの実験-スピン・アイソスピン励起

    岡村 弘之, 渕 好秀, 畑中 吉治, 保坂 将人, 市原 卓, 石田 悟, 新関 隆, 加藤 静吾, 川島 秀雄, 久保野 茂, 宮本 昭一, 大沼 甫, 大津 秀暁, 織原 彦之丞, 酒井 英行, 坂本 成彦, 田島 靖, 高久 清作, 田中 雅彦, 豊川 秀訓, 上坂 友洋, 若狭 智嗣, 山本 琢久, 與曽井 優

    日本物理学会講演概要集. 年会   1993.3

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  • 30p-ZQ-6 理研における原子線型偏極イオン源開発の現状

    上坂 友洋, 岡村 弘之, 坂本 成彦, 酒井 英行, 大津 秀暁, 若狭 智嗣, 池上 九三男, 藤田 二郎, 久保 敏幸, 稲辺 尚人, 加瀬 晶之, 後藤 彰, 矢野 安重, 畑中 吉治

    日本物理学会講演概要集. 年会   1993.3

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  • 5a-E-5 (p, n)準弾性散乱の偏極分解能測定

    秋の分科会講演予稿集   1992.9

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  • 4a-PS-21 理研に於ける偏極イオン源の建設

    坂本 成彦, 岡村 浩之, 酒井 英行, 上坂 友洋, 若狭 智嗣, 久保 敏幸, 稲辺 尚人, 藤田 二郎, 池上 九三男, 加瀬 昌之, 後藤 彰, 矢野 安重, 畑中 吉治

    秋の分科会講演予稿集   1992.9

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