Systematic calculations of low-lying energy levels, transitions, and g factors of even-even tellurium isotopes with mass numbers from 128 to 140 are performed via the nucleon-pair approximation (NPA) of the shell model with phenomenological multipole-multipole interactions. An optimal agreement is obtained between the calculated results and experimental data. The yrast band structures of nuclei below and above the shell closure are compared and discussed. In particular, the evolutionary differences of values and factors, with respect to the symmetry of , are attributed to the dominant contribution differences in neutron and proton excitations, respectively.

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国家自然科学基金(11875188, 11905130, 12075169), 四川省科技计划项目(2019JDRC0017), 西南科技大学博士点资助的Te同位素在N = 82壳闭合上的对称和不对称结构演化(18zx7147) 和上海航海计划 (19YF1434200)

质量数从 128 到 140 的偶数碲同位素的低能级、跃迁和g因子的系统计算是通过具有现象学多极-多极相互作用的壳模型的核子对近似 (NPA) 进行的。在计算结果和实验数据之间获得了最佳一致性。比较和讨论了壳闭合下方和上方核的 yrast 带结构。特别是，关于 对称性的值和因子的进化差异分别归因于中子和质子激发的主要贡献差异。