Possible existence of triaxial superdeformation in 172,174,176W

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DONG Yong-Sheng, YU Shao-Ying, SHEN Cai-Wan and LIU Yan-Xin. Possible existence of triaxial superdeformation in 172,174,176W[J]. Chinese Physics C, 2009, 33(2): 103-106. doi: 10.1088/1674-1137/33/2/005
DONG Yong-Sheng, YU Shao-Ying, SHEN Cai-Wan and LIU Yan-Xin. Possible existence of triaxial superdeformation in 172,174,176W[J]. Chinese Physics C, 2009, 33(2): 103-106.  doi: 10.1088/1674-1137/33/2/005 shu
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Received: 2008-06-27
Revised: 2008-07-20
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Possible existence of triaxial superdeformation in 172,174,176W

    Corresponding author: YU Shao-Ying,

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.

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