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Exploring shape (phase) evolution in even-even 126−136Ba*

delete2025-07-01
delete0
PRE
AI
J
Jie Yang
X
Xin Guan
R
Rong-Xin Nie
H
Hua-Lei Wang
F
Feng Pan
J
Jerry P. Draayer
DOI：doi:10.1088/1674-1137/adc2dadelete
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Abstract

Abstract

En 中文
In this study, the evolution of nuclear shape and rotational behavior along the yrast line in even-even was systematically investigated using pairing self-consistent Woods-Saxon-Strutinsky calculations combined with the total Routhian surface (TRS) method in the ( ) deformation space. Empirical laws were applied to evaluate nuclear ground-state properties, revealing a shape evolution from axially deformed to non-axial vibrational configuration in even-even isotopes. Particularly, an extreme γ-unstable shape was predicted in . The shape transition of the ground state in these nuclei was confirmed by the TRS calculations. In addition, the evolution of the nuclear shape in high spin states with varying rotational axes associated with rotation around the medium, long, and short axes was elucidated from the TRS calculations. This variation was further characterized by the alignment of the and configurations, highlighting a preference for non-collective oblate/triaxial shapes with and collective oblate/triaxial shapes with , respectively.
Keywords:
nuclear shape evolution
yrast line
pairing self-consistent calculations
total Routhian surface
rotational behavior

Journal

Chinese Physics C cover
Chinese Physics C
IF:
3.1
Papers:
4.8K
Citations:
6.0K

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No organization information available