https://scholars.lib.ntu.edu.tw/handle/123456789/606750
標題: | Search for lepton-flavor-violating tau-lepton decays to ?γ at Belle | 作者: | Uno K WEI-SHU HOU et al. |
關鍵字: | e+-e? Experiments; | 公開日期: | 2021 | 卷: | 2021 | 期: | 10 | 來源出版物: | Journal of High Energy Physics | 摘要: | Charged lepton flavor violation is forbidden in the Standard Model but possible in several new physics scenarios. In many of these models, the radiative decays τ± → ?±γ (? = e, μ) are predicted to have a sizeable probability, making them particularly interesting channels to search at various experiments. An updated search via τ± → ?±γ using full data of the Belle experiment, corresponding to an integrated luminosity of 988 fb?1, is reported for charged lepton flavor violation. No significant excess over background predictions from the Standard Model is observed, and the upper limits on the branching fractions, B(τ± → μ±γ) ? 4.2 × 10?8 and B(τ± → e±γ) ? 5.6 × 10?8, are set at 90% confidence level. [Figure not available: see fulltext.]. ? 2021, The Author(s). |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116755774&doi=10.1007%2fJHEP10%282021%29019&partnerID=40&md5=70ce8359e4f7e401b3429750759cded0 https://scholars.lib.ntu.edu.tw/handle/123456789/606750 |
ISSN: | 10298479 | DOI: | 10.1007/JHEP10(2021)019 |
顯示於: | 物理學系 |
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