In this study,the evolution of nuclear shape and rotational behavior along the yrast line in even-even^(126-136)was systematically investigated using pairing self-consistent Woods-Saxon-Strutinsky calculations combine...In this study,the evolution of nuclear shape and rotational behavior along the yrast line in even-even^(126-136)was systematically investigated using pairing self-consistent Woods-Saxon-Strutinsky calculations combined with the total Routhian surface(TRS)method in the(β_(2),γ,β_(4))deformation space.Empirical laws were applied to evaluate nuclear ground-state properties,revealing a shape evolution from axially deformed to non-axial vibrational configuration in even-even isotopes.Particularly,an extremeγ-unstable shape was predicted in.The shape transition of the ground state in these nuclei was confirmed by the TRS calculations.In addition,the evolution of the nuclear shape in high spin states with varying rotational axes associated with rotation around the medium,long,and short axes was elucidated from the TRS calculations.This variation was further characterized by the alignment of theπ(h_(11/2))^(2)and v(h11/2)^(2)configurations,highlighting a preference for non-collective oblate/triaxial shapes withγ>0°and collective oblate/triaxial shapes withγ<0°,espectively.展开更多
基金Supported by the National Natural Science Foundation of China(12275115,11975209,12175097)Natural Science Foundation of Henan(252300421478)。
文摘In this study,the evolution of nuclear shape and rotational behavior along the yrast line in even-even^(126-136)was systematically investigated using pairing self-consistent Woods-Saxon-Strutinsky calculations combined with the total Routhian surface(TRS)method in the(β_(2),γ,β_(4))deformation space.Empirical laws were applied to evaluate nuclear ground-state properties,revealing a shape evolution from axially deformed to non-axial vibrational configuration in even-even isotopes.Particularly,an extremeγ-unstable shape was predicted in.The shape transition of the ground state in these nuclei was confirmed by the TRS calculations.In addition,the evolution of the nuclear shape in high spin states with varying rotational axes associated with rotation around the medium,long,and short axes was elucidated from the TRS calculations.This variation was further characterized by the alignment of theπ(h_(11/2))^(2)and v(h11/2)^(2)configurations,highlighting a preference for non-collective oblate/triaxial shapes withγ>0°and collective oblate/triaxial shapes withγ<0°,espectively.
