We report the first observation of two wobbling bands in ${}^{183}\mathrm{Au}$, both of which were interpreted as the transverse wobbling (TW) band but with different behavior of their wobbling energies as a function of spin. It increases (decreases) with spin for the positive (negative) parity configuration. The crucial evidence for the wobbling nature of the bands, dominance of the $E2$ component in the $\mathrm{\Delta }I=1$ transitions between the partner bands, is provided by the simultaneous measurements of directional correlation from the oriented states ratio and the linear polarization of the $\gamma$ rays. Particle rotor model calculations with triaxial deformation reproduce the experimental data well. A value of spin, $I_m$, has been determined for the observed TW bands below which the wobbling energy increases and above which it decreases with spin. The nucleus ${}^{183}\mathrm{Au}$ is, so far, the only nucleus in which both the increasing and the decreasing parts are observed and thus gives the experimental evidence of the complete transverse wobbling phenomenon.

中文翻译：

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Au183中不同类型的多个横向摆动带的初步观察

我们报告了第一次观察到两个摆动波段 ${}^{183}金$，这两者均被解释为横向摆动（TW）波段，但其摆动能量随自旋而变化。对于正（负）奇偶校验配置，它随着旋转增加（减小）。乐队摇摇欲坠的关键证据，即乐队的统治地位。$Ë2$ 组件中的 $\mathrm{\Delta }\mathrm{一世}=\mathrm{1个}$ 伙伴带之间的跃迁是通过同时测量取向相关比和线性极化的方向相关来提供的 $\gamma$射线。具有三轴变形的粒子转子模型计算很好地再现了实验数据。旋转的值${\mathrm{一世}}_{米}$对于所观察到的TW频带，已经确定了α，在该频带以下，摆动能量增加，而在其上方旋转能量减小。核${}^{183}金$ 到目前为止，它是唯一观察到增加和减少部分的原子核，从而为完全横向摆动现象提供了实验证据。