Octupole correlations in stable nucleus ^(153)Eu within reflection-asymmetric particle rotor model

作     者：Yuanyuan Wang Shuangquan Zhang 王媛媛;张双全

作者机构：Mathematics and Physics DepartmentNorth China Electric Power UniversityBeijing 102206China Hebei Key Laboratory of Physics and Energy TechnologyNorth China Electric Power UniversityBaoding 071000China State Key Laboratory of Nuclear Physics and TechnologySchool of PhysicsPeking UniversityBeijing 100871China 

出 版 物：《Chinese Physics C》 (中国物理C(英文版))

年 卷 期：2025年第49卷第1期

页      面：216-222页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：Supported partly by the National Key R&D Program of China(2024YFE0109803) the National Natural Science Foundation of China(12205097,11935003,12141501) the Fundamental Research Funds for the Central Universities(2024MS071) the State Key Laboratory of Nuclear Physics and Technology,Peking University(NPT2023ZX03) the High Performance Computing Platform of Peking University 

主　　题：octupole correlations parity doublet bands electromagnetic transitions reflection-asymmetric triaxial particle rotor model 

摘      要：The observed low-lying K=5/2^(±) positive-and negative-parity bands in the stable nucleus ^(153)Eu are investigated using the reflection-asymmetric triaxial particle rotor *** experimental energy spectra,energy staggering parameters,and intraband E2 and M1 transition probabilities are well *** calculated interband B(E1)values are found to depend sensitively on the octupole deformation parameter β_(30),although the energy spectra and intraband E2 and M1 transitions can be reproduced without the octupole degree of *** observed enhanced E1 transition probabilities can be reproduced with β_(30)=*** detailed analysis of the intrinsic wave functions shows these nearly degenerate positive-and negative-parity bands are built on two individual proton configurations,i.e.,dominated by πg_(7/2)[Ω=5/2]and πh_(11/2)[Ω=5/2],respectively,which differs from the parity doublet bands built on a single parity-mixed configuration.