Nuclear structure of 76Ge from proton-neutron interacting boson model calculations

• 来源期刊: 中国科学:物理学 力学 天文学（英文版）
• 年，卷（期）: 2018,（1）
• 页码范围: 44-50
• 页数: 7页
• 语种: 英文

摘要

The properties of low-lying states in 76Ge,especially the characteristics of the mixed-symmetry states,have been investigated within the neutron-proton interacting boson model (IBM-2).By considering the relative energy of d proton boson to be different from that of neutron boson,the low-lying positive parity levels and M1,E2 transition strengths have been calculated.The IBM-2 calculated results are in good agreement with the experimental data.Particularly,the mixed-symmetry states have been reproduced quite well.The calculation and systematic analysis demonstrated that the collective character of 76Ge lies closest to the SUπν*(3),with some possible Oπv(6) dynamic symmetry in IBM-2 viewpoint.