R（5）群Casimir算子对核子JT耦合态的进一步分类  

Further Classification of JT Coupled States for Nucleons by Casimir Operator of R(5) Group

作　　者：陈健华[1] 况蕙孙 白铭复 程香爱 

机构地区：[1]国防科技大学应用物理系

出　　处：《高能物理与核物理》1995年第5期424-430,共7页High Energy Physics and Nuclear Physics

摘　　要：用Ｒ（５）群Ｃａｓｉｍｉｒ算子Ｃ对核子ＪＴ耦合态的进一步分类作了计算，并将ＪＴＣ分类的重复度对Ｊ．Ｔ的依赖关系因子化，对ｊ≤Ｔ／２列出了具体结果．由Ｒ（５）的不可约表示引入辛弱数υ和约化同位旋τ，利用υ和τ的选择定则可简化任意张量算子的矩阵元计算．The further classifications of JT coupled states for nucleons by the Casimir operator C of R(5) group have been calculated. The multiplicities of JTC classification (which depends on both J and T) have been factorized into one factor depending on J and T, and the results for j≤7/2 are listed. Tollowing the irredicible representation of R(5), the siniority v and reduced isotopic spin τ can be used to simplify the calculation of matrix elements of any tensor operator by the selection rules of υ and τ.

关 键 词：Casimir算子 R(5)群 核子JT耦合态 分类 

分 类 号：O571.2[理学—粒子物理与原子核物理]