Abstract The chirality suggested for the doublet bands B2 and B2a in 195Tl in A ∼ 190 region is reexamined. The potential-energy curves and the configurations together with the deformation parameters are obtained by the constrained covariant density functional theory. The corresponding experimental energy spectra, energy differences between doublet bands, and the available B ( M 1 ) / B ( E 2 ) values are investigated by the fully quantal particle rotor model. Analysis on the basis of the angular momentum components, the K-plots, and the azimuthal plots suggest a planar rotation interpretation for the bands B2 and B2a. Hence, it coexists with the aplanar rotation in the other doublet bands B4 and B4a in 195Tl.

中文翻译：

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195Tl 中平面和平面旋转的共存

摘要 重新检验了 A ∼ 190 区域 195Tl 中双峰 B2 和 B2a 的手性。通过约束协变密度泛函理论获得势能曲线和构型以及变形参数。通过全量子粒子转子模型研究相应的实验能谱、双峰带之间的能量差异和可用的 B ( M 1 ) / B ( E 2 ) 值。基于角动量分量、K 图和方位图的分析建议对带 B2 和 B2a 进行平面旋转解释。因此，它与 195Tl 中其他双峰带 B4 和 B4a 中的平面旋转共存。