Spectra Statistics for the Odd-Odd Nucleus ^(86)Nb

作     者：ZHENG Ren-Rong ZHU Shun-Quan CHENG Nan-Pu 郑仁蓉;朱顺泉;程南璞

作者机构：Department of PhysicsShanghai Normal UniversityShanghai 200234 Department of Physics:Southwest Normal UniversityChongqing 400715 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2001年第18卷第10期

页      面：1327-1330页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No.19875040 

主　　题：chaotic spectra rigidity 

摘      要：The energy levels of the odd-odd nucleus ^(86)Nb at low spins are calculated by using quasi-particles plus a rotor model. The distribution of the nearest-neighbour spacing and the spectral rigidity are studied. We find that the chaotic degree of the energy spectra increases with the increasing spin and reaches a maximum at I = 10;then it decreases gradually for spins above I = 10. The recoil term in the model Haniltonian makes the energy spectra slightly regular. The Coriolis force, however, makes the spectra chaotic and plays a major role in the spectral statistics of the odd-odd nucleus ^(86)Nb.