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Spin responses of unstable exotic nuclei studied by exothermic charge-exchange reactions in inverse-kinematics

Research Project

Project/Area Number 22340049
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionThe Institute of Physical and Chemical Research

Principal Investigator

SAKAI Hideyuki  独立行政法人理化学研究所, 共用促進・産業連携部, 部長 (90030030)

Co-Investigator(Kenkyū-buntansha) YAKO Kentaro  東京大学, 大学院・理学系研究科, 准教授 (50361572)
SHIMOURA Susumu  東京大学, 大学院・理学系研究科, 教授 (10170995)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2012: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2010: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Keywords発熱荷電交換反応 / 不安定核 / スピン応答 / ガモフ・テラー巨大共鳴 / 不安定核ビーム / 逆運動学ビーム実験 / ガモフ・テラー遷移 / スピン双極巨大共鳴 / 発熱型(p,n)型荷電交換反応
Research Abstract

Using an unstable exotic beam of ^(12)Be, the exothermic charge-exchange (p,n) reaction which was not possible in the past was performed for the first time. The spin responses of very neutron rich nucleus (N-Z)/A=0.33 were studied. In particular, information on: (1) Gamow-Teller giant resonance and its strength, (2)Low lying spin dipole states as an indication of breakdown of neutron closed shell structure, were obtained. Furthermore the measurement was extended successfully to more neutron rich nucleus ^8He which has (N-Z)/A=0.5.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (17 results)

All 2012 2011 2010 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (8 results) Remarks (3 results)

  • [Journal Article] Extraction of Gamow-Teller strength distributions from 56Ni and 55Co via the (p,n) reaction in inverse kinematics2012

    • Author(s)
      M. Sasano, H. Sakai, K. Yako, et al.,
    • Journal Title

      Physical Review

      Volume: C86 Issue: 3 Pages: 34324-34324

    • DOI

      10.1103/physrevc.86.034324

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Spin-Isospin Excitations in Nuclei2012

    • Author(s)
      H. Sakai, Nuclear Structure
    • Journal Title

      AAPPS Bulletin

      Volume: 22 Pages: 8-8

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Nuclear Structure: Spin-Isospin Excitations in Nuclei2012

    • Author(s)
      H. Sakai
    • Journal Title

      AAPPS Bulletin

      Volume: 22 Pages: 8-8

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gamow-Teller Transition Strengths from 56Ni2011

    • Author(s)
      M. Sasano, H. Sakai, K. Yako, et al
    • Journal Title

      Physical Review Letters

      Volume: 107 Issue: 20 Pages: 202501-202501

    • DOI

      10.1103/physrevlett.107.202501

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analyzing power for proton elastic scattering from the neutron-rich He-6 nucleus2010

    • Author(s)
      T. Uesaka, H. Sakai et al
    • Journal Title

      Physical Review

      Volume: C82 Issue: 2 Pages: 21602-21602

    • DOI

      10.1103/physrevc.82.021602

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Analyzing power for proton elastic scattering from the neutron-rich He-6 nucleus2010

    • Author(s)
      T.Uesaka, H.Sakai, et al.
    • Journal Title

      Physical Review C

      Volume: 82 Pages: 21602-21602

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Development of WINDS for (p,n) measurements in inverse kinematics2012

    • Author(s)
      K. Yako, H. Sakai, S. Shimoura et al
    • Organizer
      16th International Conference on Electromagnetic Isotope Separators and Techniques Related to their Applications (EMIS2012)
    • Place of Presentation
      Kinibiki-Messe, Matsue, Japan
    • Related Report
      2012 Final Research Report
  • [Presentation] Measurement of 12Be(p,n)12B reaction at 200 A MeV in inverse kinematics2012

    • Author(s)
      K. Yako, H. Sakai, S. Shimooura et al
    • Organizer
      Collective Motions in Nuclei under Extreme Conditions (COMEX4)
    • Place of Presentation
      Shonan Village Center, Kanagawa, Japan
    • Related Report
      2012 Final Research Report
  • [Presentation] Measurement of 12Be(p,n)12B reaction at 200 A MeV in inverse kinematics2012

    • Author(s)
      K. Yako
    • Organizer
      Collective Motions in Nuclei under Extreme Conditions (COMEX4)
    • Place of Presentation
      湘南国際村センター(神奈川県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Development of WINDS for (p,n) measurements in inversekinematics2012

    • Author(s)
      K. Yako
    • Organizer
      16th International Conference on Electromagnetic Isotope Separators and Techniques Related to their Applications (EMIS2012)
    • Place of Presentation
      くにびきメッセ(島根県)
    • Related Report
      2012 Annual Research Report
  • [Presentation] SHARAQ でのスピン-アイソスピン実験2011

    • Author(s)
      矢向謙太郎
    • Organizer
      日本物理学会2011 年秋季大会
    • Place of Presentation
      弘前大学(青森県弘前市)
    • Year and Date
      2011-09-16
    • Related Report
      2012 Final Research Report
  • [Presentation] SHARAQでのスピン-アイソスピン実験2011

    • Author(s)
      矢向謙太郎
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      弘前大学(青森県)
    • Year and Date
      2011-09-16
    • Related Report
      2011 Annual Research Report
  • [Presentation] 逆運動学(p,n)反応で見る12Be のテンソル相関2010

    • Author(s)
      矢向謙太郎
    • Organizer
      RCNP研究会「核構造の真の理解に向けて - テンソル力と高運動量成分 - 戦略会議」
    • Place of Presentation
      大阪大学核物理研究センター(大阪府茨木市)
    • Year and Date
      2010-11-25
    • Related Report
      2012 Final Research Report
  • [Presentation] 逆運動学(p,n)反応で見る12Beのテンソル相関2010

    • Author(s)
      矢向謙太郎
    • Organizer
      RCNP研究会「核構造の真の理解に向けて-テンソル力と高運動量成分-戦略会議」
    • Place of Presentation
      大阪大学核物理研究センター(大阪府茨木市)
    • Year and Date
      2010-11-25
    • Related Report
      2010 Annual Research Report
  • [Remarks] に本実験で使用したSHARAQ電磁スペクトロメータおよび中性子検出器アレイWINDS の写真が掲載されている。

    • URL

      http://nucl.phys.s.u-tokyo.ac.jp/sakai_g/index.html

    • Related Report
      2012 Final Research Report
  • [Remarks] 本実験で使用したSHARAQ電磁スペクトロメータおよび中性子検出器アレイWINDSの写真を掲載

    • URL

      http://nucl.phys.s.u-tokyo.ac.jp/sakai_g/index.html

    • Related Report
      2012 Annual Research Report
  • [Remarks] に本実験で使ったSHARAQ電磁スペクトロメータと中性子検出器アレイWINDSの写真が掲載されている

    • URL

      http://nucl.phys.s.u-tokyo.ac.jp/sakai_g/index.html

    • Related Report
      2011 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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