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Possible existence of triaxial superdeformation in ～(172,174,176)W

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【Author】 DONG Yong-Sheng1,2,3 YU Shao-Ying1,3,4;1) SHEN Cai-Wan1,5 LIU Yan-Xin1 1 (School of Science, Huzhou Teachers College, Huzhou 313000, China) 2 (Department of Physics, Jining Teachers College, Jining 012000, China) 3 (School of Science and Information Engineering, Zhejiang Normal University, Jinhua 321000, China) 4 (Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China) 5 (Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China)

【机构】 School of Science, Huzhou Teachers College； Department of Physics, Jining Teachers College； School of Science and Information Engineering, Zhejiang Normal University； Institute of Theoretical Physics, Chinese Academy of Sciences； Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou；

【摘要】 Two-dimensional total routhian surface (TRS) calculations are carried out to determine the triaxial superdeformation (TSD) of the even-even nucleus 174W, and the result indicates that TSD state exists with deformation parameters ε2=0.42 and γ=34.7°. In the same way, the total routhian surfaces for the nuclei 172,176W are also calculated. It shows that the neutron shell correction energy plays a key role in the formation of TSD nuclei 172,174,176W, while the high j intruder orbitals and rotational energy are also crucial in the formation mechanism.更多还原

【Abstract】 Two-dimensional total routhian surface (TRS) calculations are carried out to determine the triaxial superdeformation (TSD) of the even-even nucleus 174W, and the result indicates that TSD state exists with deformation parameters ε2=0.42 and γ=34.7°. In the same way, the total routhian surfaces for the nuclei 172,176W are also calculated. It shows that the neutron shell correction energy plays a key role in the formation of TSD nuclei 172,174,176W, while the high j intruder orbitals and rotational energy are also crucial in the formation mechanism.更多还原

【关键词】 TRS theory； triaxial superdeformation； routhian surface；
【Key words】 TRS theory； triaxial superdeformation； routhian surface；

【基金】 Supported by National Natural Science Foundation of China (10575036, 10675046);Natural Science Foundation of Zhejiang Province (Y605476, Y604027)

【文献出处】中国物理C ,Chinese Physics C , 编辑部邮箱 ,2009年02期

【分类号】O571.2
【被引频次】1
【下载频次】19

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