丰中子锶同位素的投影壳模型研究

田永威; 刘艳鑫; 图雅

doi:10.11804/NuclPhysRev.35.01.010

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丰中子锶同位素的投影壳模型研究

田永威, 刘艳鑫, 图雅

文章导航 > 原子核物理评论 > 2018 > 35(1): 10-17

田永威, 刘艳鑫, 图雅. 丰中子锶同位素的投影壳模型研究[J]. 原子核物理评论, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010

引用本文:

田永威, 刘艳鑫, 图雅. 丰中子锶同位素的投影壳模型研究[J]. 原子核物理评论, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010

TIAN Yongwei, LIU Yanxin, TU Ya. Projected Shell Model Studies for Neutron-rich Sr Isotopes[J]. Nuclear Physics Review, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010

Citation:

TIAN Yongwei, LIU Yanxin, TU Ya. Projected Shell Model Studies for Neutron-rich Sr Isotopes[J]. Nuclear Physics Review, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010

丰中子锶同位素的投影壳模型研究

doi: 10.11804/NuclPhysRev.35.01.010

1.
沈阳师范大学物理科学与技术学院, 辽宁沈阳 110034;
2.
湖州师范学院理学院, 浙江湖州 313000

基金项目: 国家自然科学基金资助项目（11305059，11647306，11475062，11305108，11575290，11747312）；沈阳师范大学优秀人才计划；辽宁省博士启动基金；辽宁省百千万人才工程资助项目

详细信息

作者简介:
田永威(1992-),男,辽宁人,硕士研究生,从事原子核结构研究;E-mail:2298839887@qq.com

通讯作者: 刘艳鑫,E-mail:hzlyx@zjhu.edu.cn。

中图分类号: O571.2

Projected Shell Model Studies for Neutron-rich Sr Isotopes

1.
College of Physics Science and Technology, Shenyang Normal University, Shenyang 110034, Liaoning, China;
2.
College of Science, Huzhou University, Huzhou 313000, Zhejiang, China

Funds: National Natural Science Foundation of China (11305059, 11647306, 11475062, 11305108, 11575290, 11747312); Talents Plan of Shenyang Normal University; Doctoral Scientific Research Foundation of Liaoning Province; Liaoning Baiqianwan Talents Program

摘要: 利用考虑跨壳激发的投影壳模型（PSM）方法，研究了质子数Z=38、中子数N=63和64大形变丰中子^101，102Sr同位素的结构性质。主要计算了转动谱、转动惯量和电磁跃迁性质等（如B（E2）和g因子），并与相应的实验数据进行系统比较和相关的理论预言。结果表明，PSM可以利用理论计算的能带图解释^101，102Sr同位素的转动惯量、电磁跃迁随自旋的变化，分析晕带的结构。PSM理论可以很好地再现实验结果，说明PSM方法及其采用的有效相互作用可以外推研究丰中子核区^101，102Sr同位素的原子核结构。对于^101，102Sr同位素，核子开始填布质子g_9/2和中子h_11/2轨道，通过更为仔细地分析能带图中来自质子g_9/2和中子h_11/2轨道对各转动带的组态成分的贡献，清晰地表明丰中子核结构性质对不同核子填布的依赖。

Recently, we have carried out systematically studies on the structural properties of proton number Z=38, neutron number N=63 and 64 neutron-rich isotopes ^101,102Sr by using the projected shell model (PSM) with consideration of cross shell excitation. The rotation spectra, the moment of inertia and the electromagnetic transition properties (such as B(E2) and g-factor) are calculated and compared with the corresponding experimental data in this paper. Furthermore, more high spin states are predicted in the calculation and expected to be confirmed experimentally. The results show that the PSM can not only well analyze the structural properties of yrast bands in ^101,102Sr but also interpret the variation of the moment of inertia, electromagnetic transition with spins in terms with the theoretical band diagram. The good agreement with the experimental data suggests that the PSM with the adopted effective interactions can be generalized to study the nuclear structure of ^101,102Sr isotopes in neutron-rich mass region. For ^101,102Sr isotopes, the nucleons begin to fill proton g_9/2 and neutron h_11/2 orbital, the dependence of nuclear structure and properties on the different orbital occupies is described by carefully analyzing the contribution from proton g_9/2 and neutron h_11/2 orbital to the configuration of rotational bands in band diagram.
- 丰中子核 /
- 锶同位素 /
- 原子核形变 /
- 投影壳模型
Abstract: Recently, we have carried out systematically studies on the structural properties of proton number Z=38, neutron number N=63 and 64 neutron-rich isotopes ^101,102Sr by using the projected shell model (PSM) with consideration of cross shell excitation. The rotation spectra, the moment of inertia and the electromagnetic transition properties (such as B(E2) and g-factor) are calculated and compared with the corresponding experimental data in this paper. Furthermore, more high spin states are predicted in the calculation and expected to be confirmed experimentally. The results show that the PSM can not only well analyze the structural properties of yrast bands in ^101,102Sr but also interpret the variation of the moment of inertia, electromagnetic transition with spins in terms with the theoretical band diagram. The good agreement with the experimental data suggests that the PSM with the adopted effective interactions can be generalized to study the nuclear structure of ^101,102Sr isotopes in neutron-rich mass region. For ^101,102Sr isotopes, the nucleons begin to fill proton g_9/2 and neutron h_11/2 orbital, the dependence of nuclear structure and properties on the different orbital occupies is described by carefully analyzing the contribution from proton g_9/2 and neutron h_11/2 orbital to the configuration of rotational bands in band diagram.
- neutron-rich nuclei /
- Sr isotope /
- nuclear deformation /
- projected shell model

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丰中子锶同位素的投影壳模型研究

doi: 10.11804/NuclPhysRev.35.01.010

1. 沈阳师范大学物理科学与技术学院, 辽宁沈阳 110034;

2. 湖州师范学院理学院, 浙江湖州 313000

作者简介:
田永威(1992-),男,辽宁人,硕士研究生,从事原子核结构研究;E-mail:2298839887@qq.com

通讯作者: 刘艳鑫,E-mail:hzlyx@zjhu.edu.cn。

收稿日期: 2017-09-25
修回日期: 2017-11-04
刊出日期: 2018-03-20

中图分类号: O571.2

关键词:

摘要: 利用考虑跨壳激发的投影壳模型（PSM）方法，研究了质子数Z=38、中子数N=63和64大形变丰中子^101，102Sr同位素的结构性质。主要计算了转动谱、转动惯量和电磁跃迁性质等（如B（E2）和g因子），并与相应的实验数据进行系统比较和相关的理论预言。结果表明，PSM可以利用理论计算的能带图解释^101，102Sr同位素的转动惯量、电磁跃迁随自旋的变化，分析晕带的结构。PSM理论可以很好地再现实验结果，说明PSM方法及其采用的有效相互作用可以外推研究丰中子核区^101，102Sr同位素的原子核结构。对于^101，102Sr同位素，核子开始填布质子g_9/2和中子h_11/2轨道，通过更为仔细地分析能带图中来自质子g_9/2和中子h_11/2轨道对各转动带的组态成分的贡献，清晰地表明丰中子核结构性质对不同核子填布的依赖。

Recently, we have carried out systematically studies on the structural properties of proton number Z=38, neutron number N=63 and 64 neutron-rich isotopes ^101,102Sr by using the projected shell model (PSM) with consideration of cross shell excitation. The rotation spectra, the moment of inertia and the electromagnetic transition properties (such as B(E2) and g-factor) are calculated and compared with the corresponding experimental data in this paper. Furthermore, more high spin states are predicted in the calculation and expected to be confirmed experimentally. The results show that the PSM can not only well analyze the structural properties of yrast bands in ^101,102Sr but also interpret the variation of the moment of inertia, electromagnetic transition with spins in terms with the theoretical band diagram. The good agreement with the experimental data suggests that the PSM with the adopted effective interactions can be generalized to study the nuclear structure of ^101,102Sr isotopes in neutron-rich mass region. For ^101,102Sr isotopes, the nucleons begin to fill proton g_9/2 and neutron h_11/2 orbital, the dependence of nuclear structure and properties on the different orbital occupies is described by carefully analyzing the contribution from proton g_9/2 and neutron h_11/2 orbital to the configuration of rotational bands in band diagram.

English Abstract

Projected Shell Model Studies for Neutron-rich Sr Isotopes

1. College of Physics Science and Technology, Shenyang Normal University, Shenyang 110034, Liaoning, China;

2. College of Science, Huzhou University, Huzhou 313000, Zhejiang, China

Received Date: 2017-09-25
Rev Recd Date: 2017-11-04
Publish Date: 2018-03-20

Keywords:

Abstract: Recently, we have carried out systematically studies on the structural properties of proton number Z=38, neutron number N=63 and 64 neutron-rich isotopes ^101,102Sr by using the projected shell model (PSM) with consideration of cross shell excitation. The rotation spectra, the moment of inertia and the electromagnetic transition properties (such as B(E2) and g-factor) are calculated and compared with the corresponding experimental data in this paper. Furthermore, more high spin states are predicted in the calculation and expected to be confirmed experimentally. The results show that the PSM can not only well analyze the structural properties of yrast bands in ^101,102Sr but also interpret the variation of the moment of inertia, electromagnetic transition with spins in terms with the theoretical band diagram. The good agreement with the experimental data suggests that the PSM with the adopted effective interactions can be generalized to study the nuclear structure of ^101,102Sr isotopes in neutron-rich mass region. For ^101,102Sr isotopes, the nucleons begin to fill proton g_9/2 and neutron h_11/2 orbital, the dependence of nuclear structure and properties on the different orbital occupies is described by carefully analyzing the contribution from proton g_9/2 and neutron h_11/2 orbital to the configuration of rotational bands in band diagram.

田永威, 刘艳鑫, 图雅. 丰中子锶同位素的投影壳模型研究[J]. 原子核物理评论, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010

引用本文:

田永威, 刘艳鑫, 图雅. 丰中子锶同位素的投影壳模型研究[J]. 原子核物理评论, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010

TIAN Yongwei, LIU Yanxin, TU Ya. Projected Shell Model Studies for Neutron-rich Sr Isotopes[J]. Nuclear Physics Review, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010

Citation:

TIAN Yongwei, LIU Yanxin, TU Ya. Projected Shell Model Studies for Neutron-rich Sr Isotopes[J]. Nuclear Physics Review, 2018, 35(1): 10-17. doi: 10.11804/NuclPhysRev.35.01.010