Indication of Negative Triaxial Deformation in Very Neutron-deficient Odd-A Re Isotopes

• 作者: ZhouXiaohong Zhengyong ZhangYuhu
• 来源期刊: 近代物理研究所和兰州重离子加速器实验室年报：英文版
• 学科: 物理学
• 关键词: 中子奇 三轴形变 质子费米面 铼同位素 回旋式加速器 原子物理学
• 年，卷（期）: 2002,（1）
• 页码范围: 32
• 页数: 1页
• 分类号: O562.6

摘要

<正> For neutron deficient odd-proton nuclei in the mass region of 160, the high-Ω orbits of the πh11/2 shell are close to the proton Fermi surface, and the bands built on the 9/2-[514] configuration have been observed systematically. Cranked shell-model calculations of quasi-proton energies as a function of triaxial (7) deformation predict that the occupation of an orbit in the upper half of the πh11/2 shell tends to drive the nucleus towards negative 7-deformation. Although it is very difficult to find conclusive experimental evidence