Shell-model calculations for the semi-magic nucleus 85Br and systematic features of the N=50 odd-A isotones  

作　　者：Rui-Ju Guo Zhi-Quan Li Chen Liu Yong-He Tian Shou-Yu Wang 郭睿巨;李志泉;刘晨;田咏禾;王守宇(Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment,Institute of Space Sciences,Shandong University,Weihai 264209,China)

机构地区：Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China

出　　处：《Chinese Physics C》2017年第8期108-111,共4页中国物理C（英文版）

基　　金：Supported by Natural Science Foundation of China(11622540,11461141001,U1432119)

摘　　要：Level structures of 85Br have been investigated using the shell-model code nushellx within a large model space containing the neutron-core excitations across the N = 50 closed shell. The calculated results have been compared with the available experimental data. Reasonable agreement between the experimental and calculated values is obtained, which indicates that the neutron-core excitations are essential to reproduce the level structures of 85Br. The systematic features of neutron-core excitations in the N = 50 isotones are investigated.Level structures of 85Br have been investigated using the shell-model code nushellx within a large model space containing the neutron-core excitations across the N = 50 closed shell. The calculated results have been compared with the available experimental data. Reasonable agreement between the experimental and calculated values is obtained, which indicates that the neutron-core excitations are essential to reproduce the level structures of 85Br. The systematic features of neutron-core excitations in the N = 50 isotones are investigated.

关 键 词：level structure SHELL-MODEL neutron-core excitations 

分 类 号：O571.5[理学—粒子物理与原子核物理]