Gamow-Teller transitions from high-spin isomers in N = Z nuclei

被引：6

作者：

Liang, H. Z. ^{[1
,2
]}

Sagawa, H. ^{[1
,3
]}

Sasano, M. ^{[1
]}

Suzuki, T. ^{[4
,5
]}

Honma, M. ^{[3
]}

机构：

[1] RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan

[2] Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo 1130033, Japan

[3] Univ Aizu, Ctr Math & Phys, Fukushima 9658560, Japan

[4] Nihon Univ, Dept Phys, Coll Humanities & Sci, Tokyo 1568550, Japan

[5] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

来源：

PHYSICAL REVIEW C | 2018年 / 98卷 / 01期

关键词：

STATES; ZR-90;

D O I：

10.1103/PhysRevC.98.014311

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Gamow-Teller (GT) transitions from high-spin isomers are studied using the sum-rule approach and the shell model. The GT transition strengths from the high-spin isomeric states show a stronger collectivity than those from the ground states in two N = Z nuclei Fe-52 and Ag-94. It is argued that the spin-up and spin-down Fermi spheres involved in the GT transitions from the high-spin isomeric states play important roles. These Fermi spheres are analogous to the isospin-up and isospin-down Fermi spheres for the GT transitions from the ground states in N > Z nuclei and create a strong collectivity.

引用

页数：6

共 50 条

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