在 $^{29}$F 中揭示双中子晕结构
核实验
2020-06-08 v1 核理论
摘要
我们报道了在 RIKEN 测得的 F 与碳靶的反应截面（）。出乎意料地大的 及推导出的物质半径表明 F 是迄今最重的双中子 Borromean 晕核。该晕归因于占据 轨道的中子，从而消除了与中子数 相关的壳层闭包。结果由最先进的壳模型计算解释。基于强核力有效场论的耦合簇计算描述了 F 的物质半径，但对 F 面临挑战。
引用
@article{arxiv.2005.09492,
title = {A two-neutron halo is unveiled in $^{29}$F},
author = {S. Bagchi and R. Kanungo and Y. K. Tanaka and H. Geissel and P. Doornenbal and W. Horiuchi and G. Hagen and T. Suzuki and N. Tsunoda and D. S. Ahn and H. Baba and K. Behr and F. Browne and S. Chen and M. L. Cortés and A. Estradé and N. Fukuda and M. Holl and K. Itahashi and N. Iwasa and G. R. Jansen and W. G. Jiang and S. Kaur and A. O. Macchiavelli and S. Y. Matsumoto and S. Momiyama and I. Murray and T. Nakamura and S. J. Novario and H. J. Ong and T. Otsuka and T. Papenbrock and S. Paschalis and A. Prochazka and C. Scheidenberger and P. Schrock and Y. Shimizu and D. Steppenbeck and H. Sakurai and D. Suzuki and H. Suzuki and M. Takechi and H. Takeda and S. Takeuchi and R. Taniuchi and K. Wimmer and K. Yoshida},
journal= {arXiv preprint arXiv:2005.09492},
year = {2020}
}
备注
8 pages, 4 figures