^(171)Yb[521]1/2带单粒子轨道对转动惯量的贡献  

The Contribution of the Single Particle Orbit to the Rotation of Inertia in Band ^(171)Yb[521]1/2

作　　者：刘艳鑫 于少英[1] 

机构地区：[1]湖州师范学院理学院

出　　处：《湖州师范学院学报》2004年第2期42-44,共3页Journal of Huzhou University

基　　金：国家自然科学基金项目 (10 14 72 0 5 );中国科学院理论物理所开放课题 (2 0C90 2 )

摘　　要：采用含有对力的推转壳模型 (CSM)的粒子数守恒方法 (PNC)研究正常形变奇A核171Yb的 [5 2 1]1/ 2带的单粒子轨道对转动惯量的贡献 .同时考虑单极对力与四极对力 ,实验结果在PNC方法的计算中得到了较好的重现 。The investigation into the K=1/2 rotational band has not attracted much attention because of the decoupling term which changes the I (I+1) rule of the energy chart. This paper displays the expressions of the rotational spectra in the K=1/2 rotational band and investigates into the variation in moments of inertia with rotational frequency for normally deformed band 171Yb[521]1/2 in rareearth oddA nuclei by using the particlenumber conserving(PNC) method for treating pairing interaction(monopole and quadruple).The observed variations of J are reproduced well in the PNC calculation, particularly the microscopic mechanism(contribution from each major shell and each cranked Nilsson orbit)is clearly displayed.

关 键 词：粒子数守恒方法 奇A核正常形变转动带 动力学和运动学转动惯量 推转的Nilsson轨道 

分 类 号：O571[理学—粒子物理与原子核物理]