$K_L \to \pi^0 \gamma$ 衰变的首次搜寻
高能物理 - 实验
2021-03-26 v2
摘要
我们报告了利用 J-PARC KOTO 实验 2016 至 2018 年数据对 衰变的首次搜寻，该衰变因洛伦兹不变性而被禁止。在单事例灵敏度为 的情况下，在信号区域内未观测到候选事例。在 90% 置信水平下，分支比的上限被设定为 。
引用
@article{arxiv.2006.14918,
title = {First Search for the $K_L \to \pi^0 \gamma$ Decay},
author = {J. K. Ahn and B. Beckford and M. Campbell and S. H. Chen and J. M. Choi and J. Comfort and K. Dona and M. S. Farrington and N. Hara and H. Haraguchi and Y. B. Hsiung and M. Hutcheson and T. Inagaki and M. Isoe and I. Kamiji and E. J. Kim and J. L. Kim and H. M. Kim and T. K. Komatsubara and K. Kotera and J. W. Lee and G. Y. Lim and C. Lin and Q. S. Lin and Y. Luo and T. Mari and T. Matsumura and D. Mcfarland and K. Miyazaki and R. Murayama and K. Nakagiri and H. Nanjo and H. Nishimiya and Y. Noichi and T. Nomura and T. Nunes and M. Ohsugi and H. Okuno and J. C. Redeker and K. Sato and T. Sato and Y. Sato and N. Shimizu and T. Shimogawa and T. Shinkawa and S. Shinohara and K. Shiomi and R. Shiraishi and S. Su and Y. Sugiyama and S. Suzuki and Y. Tajima and M. Taylor and M. Tecchio and M. Togawa and T. Toyoda and Y. C. Tung and Q. H. Vuong and Y. W. Wah and H. Watanabe and T. Yamanaka and H. Y. Yoshida},
journal= {arXiv preprint arXiv:2006.14918},
year = {2021}
}