Microscopic shell-model description of irrotational-flow dynamics in^(102)Pd  

作　　者：H.G.Ganev 

机构地区：[1]Joint Institute for Nuclear Research,Dubna,Russia [2]Institute of Mechanics,Bulgarian Academy of Sciences,Sofia,Bulgaria

出　　处：《Chinese Physics C》2024年第1期82-93,共12页中国物理C（英文版）

摘　　要：The structure of the low-lying collective excitations in 102Pd is examined within the recently proposed microscopic shell-model version of the Bohr-Mottelson(BM)collective model.A good description of the excitation energies of the lowest ground,γ,andβbands,as well as the staggering function between the collective states of theγband and some other energy-dependent quantities,is obtained.The low-energy intraband and interband quadrupole dynamics is reasonably well described within the present proton-neutron sympletic based shell-model approach without the use of an effective charge and compared with the predictions of nuclear structure models.The obtained results of the present study shed light on the question of the existence of irrotational-flow type quadrupole dynamics,which lies on the ground of the original BM model of quantized vibrations and surface-wave rotations in atomic nuclei.

关 键 词：shell-model version of the Bohr-Mottelson model irrotational-flow dynamics proton-neutron symplectic model Sp(12 R)dynamical algebra 

分 类 号：O572[理学—粒子物理与原子核物理]