摘要
基于α衰变的两势方法理论模型,采用考虑了同位旋效应的唯象cosh型α-子核核势和考虑了壳效应及质子—中子相互作用的α预形成因子解析式系统地计算了最近新合成的短寿命核素223Np及其α衰变链上核素α的衰变半衰期.计算结果表明,采用考虑了壳效应及质子—中子相互作用的α预形成因子的α衰变半衰期的理论计算结果能更好地符合实验数据.这项工作可以作为将来实验和理论研究α衰变及核结构的参考.
Based on the α decay theoretical model of two-potential approach,the α decay half-lives of new synthesized short-lived nucleus223 Np and the nuclei on its α decay chain are systematically calculated by adopting the phenomenological α-daughter nucleus potential considering the isosipin effect,and the α preformation probabilities analysis formula considering the shell effect and proton-neutron interaction. The calculations indicate that the calculations of α decay half-lives with α preformation probabilities considering the shell effect and proton-neutron interaction can well reproduce the experimental data. This work will be as a reference for experimental and theoretical study of α decay and nuclear structure in the future.
作者
邓军刚
李小华
DENG Jun-gang;LI Xiao-hua(School of Nuclear Science and Technology, University of South China, Hengyang, Hunan 421001, China)
出处
《南华大学学报(自然科学版)》
2018年第2期26-29,36,共5页
Journal of University of South China:Science and Technology
基金
国家自然科学基金项目(11205083)
湖南省自然科学基金项目(2015JJ3103
2015JJ2121)
湖南省教育厅重点项目(15A159)
南华大学博士启动基金项目(2010XQD29)
湖南省研究生科研创新资助项目(CX2017B536)
关键词
Α衰变
223Np
两势方法
唯象核势
α预形成因子
α decay
223 Np
two-potential approach
phenomenological α -core potential
α prefomation probability