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

• Published in: Chinese physics C Vol. 33; no. 2; pp. 103 - 106
• Main Author: 董永胜 于少英 沈彩万 刘艳鑫
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.02.2009; School of Science, Huzhou Teachers College, Huzhou 313000, China; Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China%School of Science, Huzhou Teachers College, Huzhou 313000, China; Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, China%School of Science, Huzhou Teachers College, Huzhou 313000, China; Department of Physics, Jining Teachers College, Jining 012000, China; School of Science and Information Engineering, Zhejiang Normal University, Jinhua 321000, China%School of Science, Huzhou Teachers College, Huzhou 313000, China; School of Science and Information Engineering, Zhejiang Normal University, Jinhua 321000, China
• Subjects: TRS理论; 三维空间; 原子核; 变形参数; 计算方法; routhian surface; TRS theory; triaxial superdeformation
• ISSN: 1674-1137; 0254-3052; 2058-6132
• DOI: 10.1088/1674-1137/33/2/005

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 andγ=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.