Research output: Contribution to journal › Article › peer-review
Search for lepton-flavor-violating tau-lepton decays to ℓγ at Belle. / The BELLE collaboration.
In: Journal of High Energy Physics, Vol. 2021, No. 10, 19, 10.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Search for lepton-flavor-violating tau-lepton decays to ℓγ at Belle
AU - The BELLE collaboration
AU - Uno, K.
AU - Hayasaka, K.
AU - Inami, K.
AU - Adachi, I.
AU - Aihara, H.
AU - Asner, D. M.
AU - Atmacan, H.
AU - Aushev, T.
AU - Ayad, R.
AU - Babu, V.
AU - Bennett, J.
AU - Bernlochner, F.
AU - Bessner, M.
AU - Bhardwaj, V.
AU - Biswal, J.
AU - Bobrov, A.
AU - Bonvicini, G.
AU - Bozek, A.
AU - Bračko, M.
AU - Campajola, M.
AU - Červenkov, D.
AU - Chang, M. C.
AU - Cho, H. E.
AU - Cho, K.
AU - Cho, S. J.
AU - Choi, S. K.
AU - Choi, Y.
AU - Choudhury, S.
AU - Cinabro, D.
AU - Cunliffe, S.
AU - Dash, N.
AU - Di Capua, F.
AU - Dingfelder, J.
AU - Doležal, Z.
AU - Dong, T. V.
AU - Eidelman, S.
AU - Epifanov, D.
AU - Ferber, T.
AU - Frey, A.
AU - Gabyshev, N.
AU - Garmash, A.
AU - Korobov, A.
AU - Kovalenko, E.
AU - Krokovny, P.
AU - Kuzmin, A.
AU - Matvienko, D.
AU - Shwartz, B.
AU - Usov, Y.
AU - Vinokurova, A.
AU - Zhilich, V.
N1 - Publisher Copyright: © 2021, The Author(s).
PY - 2021/10
Y1 - 2021/10
N2 - 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.
AB - 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.
KW - e-e Experiments
UR - http://www.scopus.com/inward/record.url?scp=85116755774&partnerID=8YFLogxK
U2 - 10.1007/JHEP10(2021)019
DO - 10.1007/JHEP10(2021)019
M3 - Article
AN - SCOPUS:85116755774
VL - 2021
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 10
M1 - 19
ER -
ID: 34399491