KEK素粒子原子核研究所・理論セミナー（北原 鉄平氏）
| カテゴリ | 理論セミナー |
|---|---|
| 開始 | 2020/05/28 (木) 13:30 |
| 終了 | 2020/05/28 (木) 14:30 |
| 会場 | Online (Zoom) |
| 講演タイトル | Direct CP violation in K→μ+μ−K→μ+μ− and new physics search |
| 講演者 | 北原 鉄平氏（名古屋大学） |
| 言語 | |
| 連絡先 | |
| ウェブサイト | |
| 食堂・売店 | ／0 |
概要
A rare decay KL→μ+μ−KL→μ+μ− has been measured precisely, while a similar rare decay KS→μ+μ−KS→μ+μ− has not been seen yet, which will be measured by an upgrade of the LHCb experiment. Although both processes are almost CP conserving, I will point out that an interference contribution between KLKL and KSKS in a neutral kaon beam emerges from a genuine direct CP violation. It will be shown that the interference contribution can be a comparable size to the standard-model prediction of BR(KS→μ+μ−)(KS→μ+μ−). I will also introduce several new physics effects in K→μ+μ−K→μ+μ−, and a connection with ϵ′/ϵϵ′/ϵ, which is a direct CP violation in K→ππK→ππ. References: arXiv:1707.06999, Phys.Rev.Lett. 119 (2017) 20, 201802 arXiv:1711.11030, JHEP 05 (2018) 024 arXiv:1712.04959, JHEP 04 (2018) 019
カテゴリ
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国際会議・研究会
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コロキウム
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セミナー
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談話会・交流会