Uno, K.Hayasaka, K.Inami, K.Adachi, I.Aihara, H.Asner, D. M.Atmacan, H.Aushev, T.Ayad, R.Babu, V.Bennett, J.Bernlochner, F.Bessner, M.Bhardwaj, V.Biswal, J.Bobrov, A.Bonvicini, G.Bozek, A.Bracko, M.Campajola, M.Cervenkov, D.Chang, M. -C.Cho, H. E.Cho, K.Cho, S. -J.Choi, S. -K.Choi, Y.Choudhury, S.Cinabro, D.Cunliffe, S.Dash, N.Di Capua, F.Dingfelder, J.Dolezal, Z.Dong, T.Eidelman, S.Epifanov, D.Ferber, T.Frey, A.Fulsom, B. G.Garg, R.Gaur, V.Gabyshev, N.Garmash, A.Giri, A.Goldenzweig, P.Hadjivasiliou, C.Hara, T.Hartbrich, O.Hayashii, H.Villanueva, M. HernandezHou, W. -S.Hsu, C. -L.Iijima, T.Inguglia, G.Ishikawa, A.Itoh, R.Iwasaki, M.Jacobs, W. W.Jin, Y.Joo, K. K.Kang, K. H.Kato, Y.Kichimi, H.Kiesling, C.Kim, C. H.Kim, D. Y.Kim, K. -H.Kim, S. H.Kodys, P.Konno, T.Korobov, A.Korpar, S.Kovalenko, E.Krizan, P.Kroeger, R.Krokovny, P.Kuhr, T.Kumar, M.Kumar, R.Kumara, K.Kuzmin, A.Kwon, Y. -J.Lai, Y. -T.Lange, J. S.Lee, S. C.Li, Y. B.Li Gioi, L.Libby, J.Lieret, K.Liventsev, D.MacQueen, C.Masuda, M.Matsuoka, K.Matvienko, D.Merola, M.Metzner, F.Miyabayashi, K.Mizuk, R.Mohanty, G. B.Nakao, M.Nakazawa, H.Natochii, A.Nayak, L.Niiyama, M.Nisar, N. K.Nishida, S.Nishimura, K.Ogawa, K.Ogawa, S.Oskin, P.Pakhlov, P.Pakhlova, G.Pardi, S.Park, H.Park, S. -H.Paul, S.Pestotnik, R.Piilonen, L. E.Podobnik, T.Prencipe, E.Prim, M. T.Rohrken, M.Rostomyan, A.Rout, N.Russo, G.Sahoo, D.Sakai, Y.Sandilya, S.Sangal, A.Santelj, L.Sanuki, T.Savinov, V.Schnell, G.Schwanda, C.Seino, Y.Senyo, K.Sevior, M. E.Sharma, C.Shen, C. P.Shiu, J. -G.Shwartz, B.Simon, F.Sokolov, A.Solovieva, E.Staric, M.Stottler, Z. S.Sumihama, M.Sumiyoshi, T.Sutcliffe, W.Takizawa, M.Tanida, K.Tao, Y.Tenchini, F.Trabelsi, K.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Ushiroda, Y.Usov, Y.Vahsen, S. E.Van Tonder, R.Varner, G.Vinokurova, A.Vossen, A.Waheed, E.Wang, C. H.Wang, E.Wang, M. -Z.Wang, X. L.Werbycka, O.Won, E.Yabsley, B. D.Yan, W.Ye, H.Yin, J. H.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhukova, V.2024-01-222024-01-222021-10-041029-8479https://hdl.handle.net/10919/117495Charged 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.].16 page(s)application/pdfenIn CopyrightPhysicse(+)-e(-) ExperimentsArticle - Refereedhttps://doi.org/10.1007/JHEP10(2021)019202110Piilonen, Leo [0000-0001-6836-0748]1029-8479