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

通过逆运动学中的放热电荷交换反应研究不稳定奇异核的自旋响应

• 批准号: 22340049
• 负责人: SAKAI Hideyuki
• 金额: $ 11.32万
• 依托单位: The Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22340049/
• 关键词: 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

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.

利用不稳定的~（12）Be离子束，首次实现了放热的电荷交换（p，n）反应，这在过去是不可能的。研究了丰中子核（N-Z）/A=0.33的自旋响应。特别是关于以下方面的资料：（1）Gamow-Teller巨共振及其强度;（2）作为中子闭壳层结构破裂标志的低位自旋偶极态。此外，测量还成功地扩展到了（N-Z）/A=0.5的更多丰中子核^8He。

项目成果

Spin-Isospin Excitations in Nuclei

原子核中的自旋同位旋激发

• 发表时间: 2012
• 期刊: AAPPS Bulletin
• 作者: H. Sakai;Nuclear Structure
• 通讯作者: Nuclear Structure

Measurement of 12Be(p,n)12B reaction at 200 A MeV in inverse kinematics

逆运动学中 200 A MeV 下 12Be(p,n)12B 反应的测量

• 发表时间: 2012
• 作者: K. Yako;H. Sakai;S. Shimooura et al
• 通讯作者: S. Shimooura et al

Extraction of Gamow-Teller strength distributions from 56Ni and 55Co via the (p,n) reaction in inverse kinematics

通过逆运动学中的 (p,n) 反应从 56Ni 和 55Co 中提取 Gamow-Teller 强度分布

• DOI: 10.1103/physrevc.86.034324
• 发表时间: 2012
• 期刊: Physical Review
• 作者: M. Sasano;H. Sakai;K. Yako;et al.,
• 通讯作者: et al.,

Development of WINDS for (p,n) measurements in inversekinematics

开发用于逆运动学中 (p,n) 测量的 WINDS

• 发表时间: 2012
• 作者: Uchiyama;H.;Nobukawa;M.;Tsuru;T.,Koyama;K.;Matsumoto;H.;K. Mase;桑江一洋;Nishizawa et al.;T. Sugawa;K. Yako
• 通讯作者: K. Yako

Analyzing power for proton elastic scattering from the neutron-rich He-6 nucleus

富中子 He-6 核质子弹性散射的功率分析

• DOI: 10.1103/physrevc.82.021602
• 发表时间: 2010
• 期刊: Physical Review
• 作者: T. Uesaka;H. Sakai et al
• 通讯作者: H. Sakai et al