摘要
在球形相对论平均场模型下,采用PK1和NL3相互作用,对N=127同中子核素的基态和低激发态进行了研究,获得了价核子的激发能及中子、质子和最后一个中子的密度分布,指出209Pb的3d5/2,4s1/2和3d3/2激发态可能存在一个中子晕结构,207Hg,208Tl,210Bi和211Po的3d5/2,4s1/2及3d3/2激发态也可能存在一个中子晕结构。
Properties of the ground state and the excited states in N= 127 isotones are investigated with relativistic mean field theory with the interactions PK1 and NL3. By analyzing the rms of proton and neutron, the single particle levels of valence nucleon and the density distributions of neutron, proton and the last neutron, it can be found that there exists a neutron halo in the excited states of 3d5/2, 4s1/2 and 3d3/2. It is also predicted that there exists a neutron halo in the excited states of 3ds/2, 4s1/2 and 3d3/2 in 207Hg, 208 T1, 210 Bi and 211 Po.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2009年第3期183-187,共5页
Nuclear Physics Review
基金
国家自然科学基金资助项目(10475001
10675001)
教育部新世纪优秀人才支持计划基金资助项目(NCET-05-0558)
安徽省人才开发基金资助项目(2007Z018)
安徽省教育厅重点科研项目(KJ2009A129)~~
关键词
相对论平均场
同中子核素
激发态晕
relativistic mean field
isotone
halo in excited state