摘要
本文讨论了具有中子质子自由度混合对称特征的新型集体态-混合对称态。在IBM-2的框架内,计算并分析了Hg、Gd和Nd同位素核的全对称态和混合对称态。对混合对称态的几个问题作了探讨,特别是详细讨论了Majorana参数对混合对称态和电磁跃迁的影响。结果表明:IBM-2可以较好地描述和解释这些态的性质。
New collective states with mixed-symmetry character of neutron-proton degrees of fre- edom is reviewed. In the framework of IBM-2, the mixed-symmtry states have been discussed in detail. The full-symmetry states and mixed-symmetry states of Hg, Gd and Nd isotopes, es- pecially the effect of Majorana parameters on these states and M1 transitions, are calculated and analyzed. The results show that the basic properties of mixed-symmetry states of these nuclei are well described by IBM-2.
出处
《高能物理与核物理》
CSCD
北大核心
1992年第6期563-570,共8页
High Energy Physics and Nuclear Physics
