在$\Lambda N$相互作用中观测到自旋相关的电荷对称性破缺：$\ ^4_\Lambda$He的伽马射线能谱学
核实验
2015-12-02 v1 核理论
摘要
通过测量跃迁的射线，使用高效率锗探测器阵列与在J-PARC的He He反应符合，确定He(1,0)基态自旋双重态之间的能量间隔为 keV。与镜像超核H中的相应能量间隔比较，本结果清楚表明相互作用中存在电荷对称性破缺(CSB)。还发现CSB效应在基态中较大，但在激发态中小一个数量级，证明 CSB相互作用具有自旋依赖性。
引用
@article{arxiv.1508.00376,
title = {Observation of Spin-Dependent Charge Symmetry Breaking in $\Lambda N$ Interaction: Gamma-Ray Spectroscopy of $^4_{\Lambda }$He},
author = {T. O. Yamamoto and M. Agnello and Y. Akazawa and N. Amano and K. Aoki and E. Botta and N. Chiga and H. Ekawa and P. Evtoukhovitch and A. Feliciello and M. Fujita and T. Gogami and S. Hasegawa and S. H. Hayakawa and T. Hayakawa and R. Honda and K. Hosomi and S . H. Hwang and N. Ichige and Y. Ichikawa and M. Ikeda and K. Imai and S. Ishimoto and S. Kanatsuki and M. H. Kim and S. H. Kim and S. Kinbara and T. Koike and J . Y. Lee and S. Marcello and K. Miwa and T. Moon and T. Nagae and S. Nagao and Y. Nakada and M. Nakagawa and Y. Ogura and A. Sakaguchi and H. Sako and Y. Sasaki and S. Sato and T. Shiozaki and K. Shirotori and H. Sugimura and S. Suto and S. Suzuki and T. Takahashi and H. Tamura and K. Tanabe and K. Tanida and Z. Tsamalaidze and M. Ukai and Y. Yamamoto and S. B. Yang},
journal= {arXiv preprint arXiv:1508.00376},
year = {2015}
}