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Transition quadrupole moments in gamma-soft nuclei and the triaxial projected shell model

Javid A. Sheikh·Yang Sun·Rudrajyoti Palit
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Abstract

Transition probabilities of the ground-state bands in $γ$-soft nuclei are studied for the first time using the triaxial projected shell model approach. It is observed that the angular-momentum dependence of the transition quadrupole moment $Q_t$ is related to the triaxial deformation of the nuclear mean-field potential. The introduction of the $γ$-degree of freedom in the shell model basis is shown to have a little influence on the {\it constant} behavior of the low-spin $Q_t$ in a well-deformed nucleus. However, the {\it increasing} collectivity with spin for the low-spin states in a $γ$-soft nucleus can only be explained by considering the triaxial mean-field deformation.

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Javid A. Sheikh, Yang Sun, Rudrajyoti Palit. 2001-03-01. Transition quadrupole moments in gamma-soft nuclei and the triaxial projected shell model. https://doi.org/10.1016/s0370-2693(01)00380-x

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