${68}$Ni 短寿命核的电荷半径及其与偶极极化率的相关性
核实验
2020-04-22 v1 核理论
摘要
我们展示了在 \mbox{} 亚壳层闭壳处对丰中子核 Ni 的首次激光光谱测量,并提取了其核电荷半径。由于这是唯一测得偶极极化率 的短寿命同位素,这些观测量的结合为核结构理论提供了基准。我们将它们与基于不同手性两体和三体核子相互作用的新颖耦合团簇计算进行比较,其中观察到电荷半径与偶极极化率之间的强相关性,类似于稳定核 Ca。耦合团簇理论中的三粒子–三空穴关联显著改善了实验数据的描述,从而可以约束 Ni 的中子半径与中子皮厚度。
引用
@article{arxiv.2003.06353,
title = {Charge radius of the short-lived $^{68}$Ni and correlation with the dipole polarizability},
author = {S. Kaufmann and J. Simonis and S. Bacca and J. Billowes and M. L. Bissell and K. Blaum and B. Cheal and R. F. Garcia Ruiz and W. Gins and C. Gorges and G. Hagen and H. Heylen and A. Kanellakopoulos and S. Malbrunot-Ettenauer and M. Miorelli and R. Neugart and G. Neyens and W. Nörtershäuser and R. Sánchez and S. Sailer and A. Schwenk and T. Ratajczyk and L. V. Rodríguez and L. Wehner and C. Wraith and L. Xie and Z. Y. Xu and X. F. Yang and D. T. Yordanov},
journal= {arXiv preprint arXiv:2003.06353},
year = {2020}
}
备注
6 pages, 3 figures