中国物理B ›› 2004, Vol. 13 ›› Issue (11): 1835-1842.doi: 10.1088/1009-1963/13/11/012

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Triaxial interaction effect in the structure of 148-158Sm

张静娟1, Falih H. Al-Khudair1, 李岩松1, 龙桂鲁2   

  1. (1)Department of Physics, Tsinghua University, Beijing 100084, China; (2)Department of Physics, Tsinghua University, Beijing 100084, China; Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China; Centre of Nuclear Theory, Lanzhou Heavy Ion Accelerator National Laboratory, Lanzhou 730000, China
  • 收稿日期:2004-02-25 修回日期:2004-06-29 出版日期:2004-11-20 发布日期:2005-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10047001, 10325521 and 1047113), the State Key Development Programme for Basic Research of China (Grant No G200077400), the SRFDP Programme of Education Ministry of China.

Triaxial interaction effect in the structure of 148-158Sm

Zhang Jing-Juan (张静娟)a, Falih H. Al-Khudaira, Li Yan-Song (李岩松)a, Long Gui-Lu (龙桂鲁)abc   

  1. a Department of Physics, Tsinghua University, Beijing 100084, China; b Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, Chinac Centre of Nuclear Theory, Lanzhou Heavy Ion Accelerator National Laboratory, Lanzhou 730000, China
  • Received:2004-02-25 Revised:2004-06-29 Online:2004-11-20 Published:2005-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10047001, 10325521 and 1047113), the State Key Development Programme for Basic Research of China (Grant No G200077400), the SRFDP Programme of Education Ministry of China.

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摘要： The structures of $^{148-158}$Sm are studied in the frame of the interacting boson model. Attention is given to the triaxial interaction, and it is found that the triaxial interaction plays an important role in the detailed structure of this isotopic chain. The potential surfaces of these nuclei are also studied and the shapes of them are analysed. And it is found that though the triaxial interaction plays an important role in these nuclei, there are no stable triaxial shapes in the low-lying structures of these nuclei.

关键词: Mixed Symmetry States, {}^{148-158}Sm isotopes, interacting boson model

Abstract: The structures of {}^{148-158}Sm are studied in the frame of the interacting boson model. Attention is given to the triaxial interaction, and it is found that the triaxial interaction plays an important role in the detailed structure of this isotopic chain. The potential surfaces of these nuclei are also studied and the shapes of them are analysed. And it is found that though the triaxial interaction plays an important role in these nuclei, there are no stable triaxial shapes in the low-lying structures of these nuclei.

Key words: Mixed Symmetry States, $^{148-158}$Sm isotopes, interacting boson model

中图分类号:  (Collective models)

  • 21.60.Ev
21.10.-k (Properties of nuclei; nuclear energy levels)