^(60—66)Zn同位素核的同位旋与混合对称激发(英文)

Isospin and Mixed Symmetry Excitations in ^(60—66)Zn Isotopes

利用相互作用玻色子模型 3研究了60— 66Zn同位素的能级结构 .通过对波函数的分析 ,研究了这些核中的混合对称态 .确认了60 Zn核中的同位旋激发态 .对计算的能级和跃迁几率同实验数据进行了比较 .得到的这些结果以及计算中确定的参数值表明Zn同位素是从振动到gamma不稳定的转动的过渡核 .

The level structure of 60—66Zn isotopes is studied within the framework of interacting boson model-3 (IBM-3). The mixed symmetry states are investigated in these nuclei by analyzing the wave functions. The isospin excitation states are identified for 60Zn (N=Z) nucleus. The calculated energy levels and transition probabilities are compared with available experimental data. The results obtained and the values of parameters used in this calculation indicated that the Zn isotopes are in the transition from vibrational to γ-unstable nuclei.