摘要
运用变形的相对论平均场理论研究了Pb同位素链的基态性质.对关联的处理采用了BCS方法,不成对核子的处理运用了“阻塞”法.计算的结果很好地符合了实验上Pb的平均结合能,中子分离能,同位素位移.接着从原子核的微观结构出发,比较详细地研究了Pb链同位素位移出现反常扭折这一重要性质的物理机制.
The ground state properties of the Pb isotopic are studied by using the axially deformed relativistic mean field (RMF) calculation with the parameter set TM1. The pairing correlation is treated by the BCS method and the isospin dependent pairing force is used. The ‘blocking’ method is used to deal with unpaired nucleons. The theoretical results show that the relativistic mean field theory with non-linear self-interactions of mesons provides a good description of the binding energy and neutron separation energy. The present paper focus on the physical mechanism of the Pb isotope shifts.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2006年第8期745-749,共5页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金(10175082
10575119
10235020
10235030
10275094
10075080)国家重点基础研究发展规划项目(G2000077400)中国科学院知识创新工程重大项目(KJCX2-SW-N02)科技部重大前期研究专项基金(2001CCB01200
2002CCB01200)资助~~
关键词
同位素位移
相对论平均场
结合能
单粒子能级
isotope shifts
relativistic mean field theory, binding energy, single particle energy level