$^{71}$Kr与$^{71}$Br镜像系统中的同位旋破缺
核实验
2024-11-04 v1 核理论
摘要
同位旋对称性是核物理学中的基本概念。尽管同位旋对称性被部分破缺，但它对大多数核系统近似成立，这使得例外情况从核结构角度来看非常有趣。在这一框架下，预期镜像核的基态自旋和宇称应当相同，特别是对于最简单的系统，其中质子与中子互换。在本工作中，我们提供了证据表明这一假设在镜像对 Br 和 Kr 系统中被打破。我们的结论基于对 Kr 的高统计 衰变研究以及最先进的壳模型计算。在我们的工作中，我们还发现了 Se 中的新态证据，该态在 延迟质子发射过程中被填充，可被解释为长期寻找的共存 态。
引用
@article{arxiv.2411.00509,
title = {Isospin breaking in the $^{71}$Kr and $^{71}$Br mirror system},
author = {A. Algora and A. Vitéz-Sveiczer and A. Poves and G. G. Kiss and B. Rubio and G. de Angelis and F. Recchia and S. Nishimura and T. Rodriguez and P. Sarriguren and J. Agramunt and V. Guadilla and A. Montaner-Pizá and A. I. Morales and S. E. A. Orrigo and D. Napoli and S. M. Lenzi and A. Boso and V. H. Phong and J. Wu and P. -A. Söderström and T. Sumikama and H. Suzuki and H. Takeda and D. S. Ahn and H. Baba and P. Doornenbal and N. Fukuda and N. Inabe and T. Isobe and T. Kubo and S. Kubono and H. Sakurai and Y. Shimizu and S. Chen and B. Blank and P. Ascher and M. Gerbaux and T. Goigoux and J. Giovinazzo and S. Grévy and T. Kurtukián Nieto and C. Magron and W. Gelletly and Zs. Dombrádi and Y. Fujita and M. Tanaka and P. Aguilera and F. Molina and J. Eberth and F. Diel and D. Lubos and C. Borcea and E. Ganioglu and D. Nishimura and H. Oikawa and Y. Takei and S. Yagi and W. Korten and G. de France and P. Davies and J. Liu and J. Lee and T. Lokotko and I. Kojouharov and N. Kurz and H. Schaffner and A. Kruppa},
journal= {arXiv preprint arXiv:2411.00509},
year = {2024}
}
备注
8 pages with references, 3 figures. Supplemental material 4 pages (1 table, 3 figures)