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Total Routhian Surface Calculations on Hf Isotopes |
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| Authors: | YU Shao-Ying LI Yan-Xia SHEN Cai-Wan |
| Institution: | 1. College of Science, Huzhou Teachers College, Huzhou 313000, China ;2. College of Mathematics, Physics and Information Engineering, Zhejiang Normal University, Jinhua 321000, China ;3. Institute of Theoretical Physics, the Chinese Academy of Sciences, Beijing 100080, China ;4. Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China |
| Abstract: | The two-dimensional total routhian surface calculations have been carried out to study the triaxial superdeformed structure of a neutron-rich nucleus 173Hf firstly. In particular the effects of the rotational frequency ω and pairing-energy gap parameter Δ are discussed in detail in the course of shaping its triaxial superdeformation; additionally the neutron-shell correction energy is analyzed with emphasis in the confirmed triaxial superdeformed nucleus 173Hf. Finally, more systematical results have been investigated for some confirmed superdeformed nuclei experimentally and a few predicted triaxial superdeformed nuclei theoretically with quadropole deformation ε2≈0.4 and triaxial deformation γ≈20º or 30º in the Z=72 region. |
| Keywords: | triaxial superdeformed nucleus total routhian surface |
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