Two new bands have been identified in \(^{137}\)Nd from a high-statistics JUROGAM II gamma-ray spectroscopy experiment. Constrained density functional theory and particle rotor model calculations are used to assign configurations and investigate the band properties, which are well described and understood. It is demonstrated that these two new bands can be interpreted as chiral partners of previously known three-quasiparticle positive- and negative-parity bands. The newly observed chiral doublet bands in \(^{137}\)Nd represent an important support to the existence of multiple chiral bands in nuclei. The present results constitute the missing stone in the series of Nd nuclei showing multiple chiral bands, which becomes the most extended sequence of odd–even and even-even nuclei presenting multiple chiral bands in the Segré chart.

中文翻译：

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$$ ^ {137} $$ 137 Nd中的多个手性谱带

从高统计JUROGAM II伽玛射线光谱实验中，在\（^ {137} \） Nd中已经识别出两个新的谱带。约束密度泛函理论和粒子转子模型计算用于分配配置并研究能带特性，这些特性已得到很好的描述和理解。证明了这两个新的带可以解释为以前已知的三准粒子正负平价带的手性伙伴。\（^ {137} \）中新观察到的手性双峰带Nd代表了核中多个手性带的存在的重要支持。目前的结果构成了显示多个手性带的Nd核系列中的缺失宝石，这成为了在Segré图表中呈现多个手性带的奇偶核的最扩展序列。