$^{137} $ nd中的多个手性乐队

论文标题

$^{137} $ nd中的多个手性乐队

Multiple chiral bands in $^{137}$Nd

论文作者

Petrache, C. M., Lv, B. F., Chen, Q. B., Meng, J., Astier, A., Dupont, E., Zheng, K. K., Greenlees, P. T., Badran, H., Calverley, T., Cox, D. M., Grahn, T., Hilton, J., Julin, R., Juutinen, S., Konki, J., Pakarinen, J., Papadakis, P., Partanen, J., Rahkila, P., Ruotsalainen, P., Sandzelius, M., Saren, J., Scholey, C., Sorri, J., Stolze, S., Uusitalo, J., Cederwall, B., Ertoprak, A., Liu, H., Guo, S., Wang, J. G., Zhou, X. H., Kuti, I., Timar, J., Tucholski, A., Srebrny, J., Andreoiu, C.

论文摘要

来自高统计杂志II伽马射线光谱实验的$^{137} $ nd中已经确定了两个新频段。约束密度的功能理论和粒子转子模型计算用于分配配置并研究频带特性，这些特性被充分描述和理解。证明这两个新频段可以被解释为先前已知的三夸米皮正阳性和负值带的手性伴侣。 $^{137} $ nd中新观察到的手性双重乐队代表了对核中多种手性带的重要支持。目前的结果构成了一系列ND核中的缺失石材，显示了多种手性带，这成为丝网图中呈现多种手性带的最扩展的核序列。

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 nuclei presenting multiple chiral bands in the Segré chart.

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