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Shape Phase Transition of the Axially Symmetric States Between the U(5) and SU(3) Symmetries

Liang-zhu Mu·Yu-xin Liu
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Abstract

The shape phase structure and its transition of the nucleus in the transitional region between the U(5) and SU(3) symmetries is restudied within the framework of coherent-state theory with angular momentum projection in IBM-1. The certain angular momentum (or rotation-driven) effect on the nuclear shape is discussed. A coexistence of prolate and oblate shapes is found for the ground states of the transitional nuclei. A phase diagram in terms of the deformation parameter and angular momentum is given.

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Liang-zhu Mu, Yu-xin Liu. 2005-07-08. Shape Phase Transition of the Axially Symmetric States Between the U(5) and SU(3) Symmetries. https://arxiv.org/abs/nucl-th/0505018

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