We have done the microscopic study of neutron-rich odd-odd iodine isotopes within the framework of projected shell model. Odd-odd nuclei are the best candidates for studying possible structure variations away from the valley of stability. We used the projected shell model, in which the deformed Nilsson single-particle states are being used for the construction of model basis. We studied the band properties of odd-odd I[Formula: see text](Z [Formula: see text] 53) isotopes with neutron numbers N [Formula: see text] 75, 77, 79, 81, 83 and 85. Using model analysis, we presented the low-lying positive- and negative-parity states of these nuclei. In these isotopes, the band structures have been analyzed in terms of quasi-particle configurations and comparative presentation of yrast levels is discussed. The phenomenon of yrast energy splitting is also studied in this work.

中文翻译：

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奇奇 128-138I 核结构的微观研究在正和负宇称状态的投影壳模型框架内

我们在投影壳模型的框架内对富含中子的奇奇碘同位素进行了微观研究。奇数核是研究远离稳定谷的可能结构变化的最佳候选者。我们使用了投影壳模型，其中变形的 Nilsson 单粒子状态被用于构建模型基础。我们研究了中子数为 N [公式：见文本] 75、77、79、81、83 和 85 的奇奇 I[公式：见文本](Z [公式：见文本] 53) 同位素的能带性质。模型分析，我们提出了这些原子核的低位正宇称和负宇称状态。在这些同位素中，根据准粒子配置分析了能带结构，并讨论了 yrast 能级的比较表示。