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利用15 4 Sm( 31P ,5nγ) 180 Ir反应产生并研究了双奇核180 Ir的高自旋态 .实验中进行了180 Ir核的在束γ测量 ,包括γ射线的激发函数测量、X γ和γ γ符合测量 ,首次建立了双奇核180 Ir由 5个转动带构成的能级纲图 .依据从实验数据中提取出的带内B(M1 ) /B(E2 )值与理论计算值的比较 ,以及相邻双奇核的带结构特征 ,给出了转动带的准粒子组态 .在推转壳模型的理论框架中 ,定性地讨论了转动带结构特征的组态依赖性
The high spin state of the double odd 180 Ir has been generated and characterized by the 180 Ir reaction of 15 4 Sm (31P, 5nγ). The in-beam γ measurements of the 180 Ir nuclei were carried out, including the measurement of the excitation function of γ-rays, γ coincidence measurement, the energy level outline of double odd-core 180 Ir is established for the first time.According to the comparison between the B (M1) / B (E2) value in the band extracted from the experimental data and the theoretical calculation value , As well as the band structure characteristics of adjacent double odd nuclei, the quasi-particle configuration of the rotating band is given.In the theoretical framework of the shell model, the structural dependence of the structural characteristics of the rotating band is qualitatively discussed