Prolate-Oblate Asymmetric Shape Phase Transition in the Interacting Boson Model with SU(3) Higher-Order Interactions

Wang, Tao; He, BingCheng; Li, Dong-Kang; Zhou, Chun-Xiao

doi:10.1103/PhysRevC.107.064322

Prolate-Oblate Asymmetric Shape Phase Transition in the Interacting Boson Model with SU(3) Higher-Order Interactions

Journal Article · 30 June 2023 · Physical Review. C. Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.107.064322· OSTI ID:1999237

Wang, Tao; He, BingCheng; Li, Dong-Kang; Zhou, Chun-Xiao

Prolate-oblate shape phase transition is an interesting topic in nuclear structure, which is useful for understanding the intrinsic interactions between nucleons. Recently, the interacting boson model with SU(3) higher-order interactions was proposed, in which the prolate shape and the oblate shape are not described in a mirror symmetric way. This asymmetric description seems more realistic. The level evolutions, B(E2) values, and other important indicators showing the prolate-oblate asymmetric transitions are investigated in detail, and realistic structure evolutions from 180Hf to 200Hg are compared. A key finding is that the average deformation of the prolate shape is nearly twice the one of the oblate shape. These results, together with the successful description of the B(E2) anomaly in 168,170Os, 172Pt, the γ -soft properties of 196Pt, 82Kr, and the normal states of 110Cd, support the validity of the new model.

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science - Office of Nuclear Physics

DOE Contract Number:: AC02-06CH11357

OSTI ID:: 1999237

Journal Information:: Physical Review. C. Nuclear Physics, Vol. 107

Country of Publication:: United States

Language:: English

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