摘要
用形变的相对论平均场模型,Skyrme Hartree Fock 模型及宏观-微观模型研究了新核素278113及其α衰变链的α衰变能和半衰期.计算的α衰变能同实验数据比较符合,相应的半衰期也在合理的范围内.计算进一步表明形变对超重核的基态性质有重要影响.
RIKEN has produced a new element Z = 113 by cold-fusion reaction. Here we systematically study the new nuclide 278113 and its α-Decay chain using deformed relativistic mean-field theory with three sets of force parameters, TMA, NL-Z2 and NL3. The results are compared with those of the Skyrme-Hartree-Fock model, Moller et al and also with the new experimental data. The experimental decay energies are well reproduced with RMF. This not only shows the validity of self-consistent field theoretical model in researching the ground state properties of superheavy nuclei, but also shows that prolate deformation is important for the ground state of these nuclei.
出处
《高能物理与核物理》
EI
CSCD
北大核心
2005年第5期439-441,共3页
High Energy Physics and Nuclear Physics
基金
国家杰出青年基金(10125521)
教育部博士点基金(20010284036)
国家重点基础研究发展规划项(G2000077400)
中国科学院创新工程重点项目(KJCX2 SW No2)资助1)~~
关键词
相对论平均场模型
半衰期
a衰变能
宏观-微观模型
超重核物理学
relativistic mean-field theory, Skyrme-Hartree-Fock model, macroscopic-microscopic model, half-life, alpha -decay energy
