Fully self-consistent calculation ofβ-decay half-lives within Skyrme energy density functional  

作　　者：Pei-Wei Wen Shi-Sheng Zhang Li-Gang Cao Feng-Shou Zhang 温培威;张时声;曹李刚;张丰收(Key Laboratory of Beam Technology of Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China;Beijing Radiation Center,Beijing 100875,China;China Institute of Atomic Energy,Beijing 102413,China;School of Physics,Beihang University,Beijing 100191,China;Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China)

机构地区：[1]Key Laboratory of Beam Technology of Ministry of Education,College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China [2]Beijing Radiation Center,Beijing 100875,China [3]China Institute of Atomic Energy,Beijing 102413,China [4]School of Physics,Beihang University,Beijing 100191,China [5]Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China

出　　处：《Chinese Physics C》2021年第1期265-271,共7页中国物理C（英文版）

基　　金：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)。

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.

关 键 词：β-decay half-lives self-consistent calculation Skyrme energy density functional 

分 类 号：O571.322[理学—粒子物理与原子核物理]