Fully self-consistent calculation ofβ-decay half-lives within Skyrme energy density functional |
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作者姓名: | 温培威 张时声 曹李刚 张丰收 |
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作者单位: | Key Laboratory of Beam Technology of Ministry of Education;Beijing Radiation Center;China Institute of Atomic Energy;School of Physics;Center of Theoretical Nuclear Physics |
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基金项目: | Supported by the National Natural Science Foundation of China(11975096,11805280,11775014,11635003,11161130520);National Basic Research Program of China(2010CB832903);European Commission’s 7th Framework Programme(Fp7-PEOPLE-2010-IRSES)under Grant Agreement Project(269131);Continuous Basic Scientific Research Project(WDJC-2019-13)。 |
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摘 要: | β-decay half-lives of some magic and semi-magic nuclei have been studied in a fully self-consistent Skyrme Hartree-Fock(HF) plus charge-exchange random phase approximation(RPA).The self-consistency is addressed,in that the same Skyrme energy density functional is adopted in the calculation of ground states and Gamow-Teller excited states.First,the impact of J2 terms on the β-decay half-lives is investigated by using the SGII interaction,revealing a large influence.Subsequently,numerical calculations are performed for the selected nuclei with Skyrme energy density functionals SGII,LNS,SKX,and SAMi.Finally,comparisons to available experimental data and predictions of different theoretical models are discussed.
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关 键 词: | β-decay half-lives self-consistent calculation Skyrme energy density functional |
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