Analytical description of shape transition in nuclear alternating parity bands

被引：0

作者：

E.V.Mardyban ^{[1
,2
]}

T.M.Shneidman ^{[1
,3
]}

E.A.Kolganova ^{[1
,2
]}

R.V.Jolos ^{[1
,2
]}

周善贵 ^{[4
,5
,6
,7
]}

机构：

[1] Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research

[2] Dubna State University

[3] Kazan Federal University

[4] CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences

[5] School of Physical Sciences,University of Chinese Academy of Sciences

[6] Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator

[7] Synergetic Innovation Center for Quantum Effects and Application, Hunan Normal University

来源：

Chinese Physics C | 2018年 / 12期

基金：

国家重点研发计划;

关键词：

octupole deformation; phase transition; angular momentum;

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：

The angular momentum dependencies of parity splitting and electric dipole transitions in the alternating parity bands of heavy nuclei have been analyzed. It is shown that these dependencies can be treated in a universal manner with a single critical angular momentum parameter, which characterizes phase transition from octupole vibrations to the stable octupole deformation. Using the simple but useful model of axially-symmetric reflectionasymmetric mode, the analytical expressions for parity splitting and electric dipole transitional moment have been obtained. The findings are in good agreement with the experimental data for various isotopes of Ra, Th, U, and Pu.

引用

页码：116 / 126

页数：11

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