Аннотация

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± → ℓ±γ (ℓ = e, μ) are predicted to have a sizeable probability, making them particularly interesting channels to search at various experiments. An updated search via τ± → ℓ±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.].

Язык оригиналаанглийский
Номер статьи19
ЖурналJournal of High Energy Physics
Том2021
Номер выпуска10
DOI
СостояниеОпубликовано - окт 2021

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  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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Подробные сведения о темах исследования «Search for lepton-flavor-violating tau-lepton decays to ℓγ at Belle». Вместе они формируют уникальный семантический отпечаток (fingerprint).

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