正常形变奇A核^(171)Tm的[411]1/2带的双重堵塞效应  

Double-Blocking Effects of Normally Deformed Band[411]1/2 in Odd-A Nucleus ^(171)Tm

作　　者：刘艳鑫 于少英[1,2] 

机构地区：[1]湖州师范学院理学院 [2]中国科学院理论物理所,北京100080

出　　处：《湖州师范学院学报》2006年第2期27-29,37,共4页Journal of Huzhou University

基　　金：国家自然科学基金(10575036);浙江省自然科学基金(Y604027);湖州师范学院校级课题(KX21029).

摘　　要：采用处理含有对力的推转壳模型(CSM)的粒子数守恒方法(PNC)研究了正常形变奇A核^(171)Tm的[411]1/2转动带的转动惯量随角频率变化的规律.在计算中同时考虑了单极对力和Y20四极对力,实验结果在PNC方法计算中得到了较好的重现.中子和质子的双重堵塞效应得到了很好的展现.The authors have investigated the[411]1/2 rotational band in ^171Tm by using the particle number conserving（PNC）method for treating the cranked shell model with monopole and Y20 quadrupole pairing interactions. The result shows that the experimental moments of inertia of ^171Tm[411]1/2 （signatureα±1/2）and the blocking effect of proton and neutron are reproduced well by the PNC calculation, in which no free parameter is involved. The authors investigate the ω variation of the occupation probability of each cranked orbital and the contribution to the moment of inertia from each major shell and from each cranked orbital.

关 键 词：奇A核 粒子数守恒方法 正常形变转动带 动力学和运动学转动惯量 堵塞效应 

分 类 号：O571[理学—粒子物理与原子核物理]