非常缺中子Re核的负三轴形变研究(英文)

Triaxial Deformation in very Neutrondeficient Re Nuclei

摘要: 利用在束核谱学实验技术,建立了169Re基于9/2-514组态的强耦合转动带.该带在已知的奇ARe核中具有最大的低自旋旋称劈列.对于奇ARe中的9/2-514转动带,研究了它们的能量旋称劈列和M1跃迁矩阵元相对旋称劈列与核形状偏离轴对称的关系,揭示了非常缺中子的奇ARe核具有相当的负三轴形变. High-spin states in~(169)Re were studied and resulted in the identification of a strongly coupled band based on the 9/2~(-)\ Nilsson state. The 9/2~(-)\ band in~(169)Re shows the largest signature splitting at low spin among the known odd mass Re isotopes. For the 9/2~(-)\ bands in light odd-A Re isotopes, the signature splitting of the Routhians and its relation with the signature dependence of M1 transition matrix elements are investigated in connection with the deviation of nuclear shape from axial symme...

Abstract: High-spin states in~(169)Re were studied and resulted in the identification of a strongly coupled band based on the 9/2~(-)\ Nilsson state. The 9/2~(-)\ band in~(169)Re shows the largest signature splitting at low spin among the known odd mass Re isotopes. For the 9/2~(-)\ bands in light odd-A Re isotopes, the signature splitting of the Routhians and its relation with the signature dependence of M1 transition matrix elements are investigated in connection with the deviation of nuclear shape from axial symme...