A=100区奇奇核旋称反转  

Signature inversion in odd-odd nuclei in the mass region A100

作　　者：罗向东[1] 郑仁蓉[1] 朱顺泉[1] 

机构地区：[1]上海师范大学物理系,上海200234

出　　处：《物理学报》2003年第8期1891-1894,共4页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :19875 0 40 );上海市高校科技发展基金 (批准号 :0 3D0 1);上海市科技发展基金 (批准号 :0 2 5 2nm0 82 )资助的课题 .~~

摘　　要：利用两准粒子加轴对称转子模型 ,对A =10 0质量区两个奇奇核1 0 2 Rh和98Rh的旋称反转进行了研究 .结果表明 ,在A =16 0 ,130 ,80三个质量区奇奇核的计算中已得到证实的、可能的旋称反转机制 (即低K空间n p相互作用和科氏力的相互竞争 ) ,对于A =10 0质量区奇奇核也是适用的 .这暗示在不同质量区奇奇核可能存在一种普遍的旋称反转机制 .With the model of an axially symmetric rotor plus two quasi-particles, the signature inversion (SI) in two odd-odd nuclei Rh-102 and Rh-98 in the mass region A = 100 is studied. The calculated result shows that the possible SI mechanism, which has been confirmed by the calculation of odd-odd nuclei in the A = 160 and A = 80 regions (i e, the competition between the n-p interaction and the coriolis force in low K space) is also appropriate for odd-odd nuclei in the A = 100 region. This seems to indicate that there might be a universal mechanism of SI in odd-odd nuclei for different mass regions.

关 键 词：奇奇核 旋称反转 两准粒子加轴对称转子模型 哈密顿量 科氏力 转动惯量 

分 类 号：O571.2[理学—粒子物理与原子核物理]