氡核中振动梨形的观测：更新
核实验
2020-06-11 v2 高能物理 - 唯象学
核理论
原子物理
摘要
大量证据表明原子核可发生八极形变并呈现梨形。该现象对于原子电偶极矩的测量十分重要，后者将指示CP破坏，从而探测粒子物理标准模型之外的物理。氡和镭的同位素均已被确定为此类测量的候选核。在此，我们通过加速这些放射性核束观测了Rn和Rn中的低能量子态。我们在此报告了2019年发表物中未指认的附加态。我们表明氡同位素经历八极振动，但在其基态中不具有静态梨形。我们得出结论：氡原子为可测原子电偶极矩的增强提供了较不利的条件。
引用
@article{arxiv.2003.10147,
title = {The observation of vibrating pear shapes in radon nuclei: update},
author = {P. A. Butler and L. P. Gaffney and P. Spagnoletti and J. Konki and M. Scheck and J. F. Smith and K. Abrahams and M. Bowry and J. Cederkäll and T. Chupp and G. De Angelis and H. De Witte and P. E. Garrett and A. Goldkuhle and C. Henrich and A. Illana and K. Johnston and D. T. Joss and J. M. Keatings and N. A. Kelly and M. Komorowska and T. Kröll and M. Lozano and B. S. Nara Singh and D. O'Donnell and J. Ojala and R. D. Page and L. G. Pedersen and C. Raison and P. Reiter and J. A. Rodriguez and D. Rosiak and S. Rothe and M. Seidlitz and T. M. Shneidman and B. Siebeck and J. Sinclair and M. Stryjczyk and P. Van Duppen and S. Vinals and V. Virtanen and N. Warr and K. Wrzosek-Lipska and M. Zielińska},
journal= {arXiv preprint arXiv:2003.10147},
year = {2020}
}
备注
Updated from Nat. Comm. 10 (2019) 2473