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ΔI= 4 Bifurcation and the sdg Interacting Boson Model |
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| Authors: | Yu-Xin LIU Hong-Zhou SUN En-Guang ZHAO |
| Institution: | 1. Department of Physics, Peking University, Beijing 100871, China; 2. Institute of Theoretical Physics, Academia Sinica, P. O. Box 2735, Beijing 100080, China; 3. Department of Physics, Tsinghua University, Beijing 100084, China |
| Abstract: | We show that the superdeformed nuclear states can be described in the framework of the interacting boson model (IBM) with the g-bosons being taken into account in this paper.The ΔI= 4 bifurcation in superdeformed rotational bands can be reproduced in the SU(5) limit of the sdg IBM. The perturbation causing the ΔI= 4 bifurcation to emerge in the ΔI= 2 superdeformed rotational band may possess the SU(5) symmetry. |
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