Wobbling motion for a triaxial rotor plus a single quasiparticle  

作　　者：李嗣华 戴华名 陈启博 周先荣 Si-Hua Li;Hua-Ming Dai;Qi-Bo Chen;Xian-Rong Zhou(Department of Physics,East China Normal University,Shanghai 200241,China)

机构地区：[1]Department of Physics,East China Normal University,Shanghai 200241,China

出　　处：《Chinese Physics C》2024年第3期104-117,共14页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China (12205103,12175071)。

摘　　要：Wobbling motion in a system comprising a triaxial rotor and a single quasiparticle is studied employing the particle-rotor model.The energy spectra,wobbling frequencies,electromagnetic transition probabilities,g-factors,angular momentum components,spin coherent state maps,and static quadrupole moments are investigated.These investigations were conducted with regard to the Fermi surface transitioning from the lowest h_(11/2) orbit to the highest one.As the Fermi surface increases,notable transformations occur in the wobbling mode.Initially,the mode exhibits a transverse revolution around the short axis of the nucleus.However,as the Fermi surface continues to increase,the mode gradually shifts to a longitudinal revolution around the intermediate axis.Eventually,it transitions to a transverse revolution around the long axis.Notably,the stability of the long axis transverse mode diminishes relative to its counterpart along the short axis as the total angular momentum increases atγ=20∘.

关 键 词：Wobbling motion Fermi surface particle-rotor model angular momentum geometry 

分 类 号：O572.2[理学—粒子物理与原子核物理]