Evidence for coexisting prolate and near-oblate shapes at high spin in 125Cs

被引：0

作者：

孙吉 ^{[1
]}

小松原哲郎 ^{[2
]}

王佳琦 ^{[1
]}

郭昊 ^{[1
]}

胡雪源 ^{[1
]}

马英君 ^{[1
]}

刘运祚 ^{[1
]}

古野興平 ^{[2
]}

机构：

[1] College of Physics, Jilin University

[2] Research Facility Center for Pure and Applied Science, University of Tsukuba

来源：

Chinese Physics C | 2016年 / 40卷 / 12期

基金：

中国国家自然科学基金;

关键词：

shape coexistence; band crossing; rotational band; high spin state; 125Cs;

D O I：

暂无

中图分类号：

O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Excited states in the odd-proton nucleus125Cs were investigated by means of in-beam γ-ray spectroscopy.The πg7/2band is observed to fork into a △I=1 coupled band and a △I=2 decoupled band at high spins.To assign the possible configurations of these two bands,experimental B(M1)/B(E2) ratios and signature splittings have been evaluated for the △I=1 band,and calculations based on the geometrical model,cranked shell model and total Routhian surfaces model have been performed.They are suggested to be a near-oblate band built on the(πg7/2/d5/2(υh11/2~2 configuration and a prolate band built on the πg7/2(πh11/2)~2 configuration,respectively.

引用

页码：61 / 68

页数：8

共 25 条

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