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Rotation Driven Shape-Phase Transition of the Yrast Nuclear States with O(6) Symmetry in the Interacting Boson Model |
| MU Liang-Zhu;LIU Yu-Xin |
| 1Department of Physics, Peking University, Beijing 100871
2The Key Laboratory of Heavy Ion Physics (Ministry of Education), Peking University, Beijing 100871
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
4Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 |
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| Cite this article: |
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MU Liang-Zhu, LIU Yu-Xin 2005 Chin. Phys. Lett. 22 1354-1357 |
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Abstract In a framework of the interacting boson model (usually referred to as IBM-1) with angular momentum projection on the coherent state, we obtain the energy surface functional of nuclei in terms of angular momentum and shape parameters. Analysing the rotation driven effect on the equilibrium shape shows that the yrast states of the nuclei with O(6) symmetry will experience a shape-phase transition from γ-soft deformed to triaxially deformed and then to spherical shape along the yrast line as the angular momentum increases.
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| Keywords:
21.10.-k
05.70.Fh
21.60.Ev
21.60.Fw
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Published: 01 June 2005
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| PACS: |
21.10.-k
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(Properties of nuclei; nuclear energy levels)
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05.70.Fh
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(Phase transitions: general studies)
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21.60.Ev
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(Collective models)
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21.60.Fw
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(Models based on group theory)
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