原子核代数模型中的F-旋混合态、回弯、电磁跃迁问题的研究  

Studies of F spin Mixed Symmetry States, Collective Backbending and Electromagnetic Transitions in Nuclear Algebraic Models

作　　者：龙桂鲁[1,2,3] 张伟林[1,2,3] 纪华鹰[1,2,3] 李岩松 屠长存[1,2,3] 牛力 赵恩广[1,2,3] 朱胜江 

机构地区：[1]清华大学物理系 [2]中国科学院理论物理研究所 [3]兰州重离子加速器国家实验室原子核理论中心

出　　处：《原子核物理评论》1999年第1期6-10,共5页Nuclear Physics Review

基　　金：国家自然科学基金;核工业科学基金;教育部优秀年轻教师基金;霍英东青年教师基金

摘　　要：在原子核的代数模型框架下，讨论了集体回弯效应、较高自旋的Ｆ－旋混合对称态以及电磁跃迁几率等问题．The collective backbending effect, F spin mixed symmetry states have been studied for the nuclei with moderate high spins. It is found that there is an additional L(L+3) proportional term in the E2 transition rates in the sdg interacting boson model and solved the long standing problem of reduction of collectivity in the wave function of boson models. The electromagnetic transitions in the spdf interacting boson model have been calculated and compared with existing experimental data, and good agreement between calculation and experimental data is obtained.

关 键 词：原子核代数模型 回弯 F-旋混合态 电磁跃迁 

分 类 号：O571.211[理学—粒子物理与原子核物理]