Recently,studies have argued that a spherical-like spectrum emerges in the SU3-IBM,thus creating new approaches to understanding y-softness in realistic nuclei.In a previous study,γ-softness with degeneracy of the gr...Recently,studies have argued that a spherical-like spectrum emerges in the SU3-IBM,thus creating new approaches to understanding y-softness in realistic nuclei.In a previous study,γ-softness with degeneracy of the ground and quasi-y bands was observed.In this paper,another special point connected to the middle degenerate point is discussed.It is found to be related to the properties of^(196)Pt.This emergentγ-softness is also shown to be important for understanding the prolate-oblate asymmetric shape phase transition.The low-lying spectra,B(E2)values,and quadrupole moments in^(196)Pt are discussed,and we show that the new model can account for several observed features.This is the first part of the discussion on theγ-soft-like spectrum of^(196)Pt.展开更多
基金supported by the Educational Department of Jilin Province,China(JJKH20210526KJ)support from the Project Supported by Scientific Research Fund of Hunan University of Art and Science(23ZZ04)。
文摘Recently,studies have argued that a spherical-like spectrum emerges in the SU3-IBM,thus creating new approaches to understanding y-softness in realistic nuclei.In a previous study,γ-softness with degeneracy of the ground and quasi-y bands was observed.In this paper,another special point connected to the middle degenerate point is discussed.It is found to be related to the properties of^(196)Pt.This emergentγ-softness is also shown to be important for understanding the prolate-oblate asymmetric shape phase transition.The low-lying spectra,B(E2)values,and quadrupole moments in^(196)Pt are discussed,and we show that the new model can account for several observed features.This is the first part of the discussion on theγ-soft-like spectrum of^(196)Pt.
