Title: | Search for B0 →τ±∓ (ℓ=e, μ) with a hadronic tagging method at Belle SEARCH for B0 →τ±∓ (ℓ=e, μ) with A ... H. ATMACAN et al |
Authors: | Atmacan, H. Schwartz, A. J. Kinoshita, K. Adachi, I. Adamczyk, K. Aihara, H. Al Said, S. Asner, D. M. Aulchenko, V. Aushev, T. Ayad, R. Babu, V. Bahinipati, S. Bauer, M. Behera, P. Belous, K. Bennett, J. Bernlochner, F. Bessner, M. Bhardwaj, V. Bhuyan, B. Bilka, T. Biswal, J. Bobrov, A. Bozek, A. Bračko, M. Branchini, P. Browder, T. E. Budano, A. Campajola, M. Cao, L. Červenkov, D. Chang, M. C. Chang, P. Chekelian, V. Chen, A. Cheon, B. G. Chilikin, K. Cho, H. E. Cho, K. Choi, S. K. Choi, Y. Choudhury, S. Cinabro, D. Cunliffe, S. Das, S. Dash, N. De Nardo, G. De Pietro, G. Dhamija, R. Di Capua, F. Dingfelder, J. DoleŽal, Z. Dong, T. V. Dubey, S. Epifanov, D. Ferber, T. Ferlewicz, D. Frey, A. Fulsom, B. G. Garg, R. Gaur, V. Gabyshev, N. Garmash, A. Giri, A. Goldenzweig, P. Graziani, E. Greenwald, D. Gu, T. Guan, Y. Gudkova, K. Hadjivasiliou, C. Halder, S. Hara, T. Hartbrich, O. Hayasaka, K. Hayashii, H. Hou, W. S. Hsu, C. L. Inami, K. Inguglia, G. Ishikawa, A. Itoh, R. Iwasaki, M. Iwasaki, Y. Jacobs, W. W. Jia, S. Jin, Y. Joo, K. K. Kaliyar, A. B. Kang, K. H. Kato, Y. Kawasaki, T. Kiesling, C. Kim, C. H. Kim, D. Y. Kim, K. H. Kim, S. H. Kim, Y. K. Kodyš, P. |
Issue Date: | 1-Nov-2021 |
Journal Volume: | 104 |
Journal Issue: | 9 |
Source: | Physical Review D |
Abstract: | We present a search for the lepton-flavor-violating decays B0→τ±∓, where ℓ=(e,μ), using the full data sample of 772×106 BB¯ pairs recorded by the Belle detector at the KEKB asymmetric-energy e+e- collider. We use events in which one B meson is fully reconstructed in a hadronic decay mode. The τ± lepton is reconstructed indirectly using the momentum of the reconstructed B and that of the ∓ from the signal decay. We find no evidence for B0→τ±∓ decays and set upper limits on their branching fractions at 90% confidence level of B(B0→τ±μ∓)<1.5×10-5 and B(B0→τ±e∓)<1.6×10-5. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/592874 |
ISSN: | 24700010 |
DOI: | 10.1103/PhysRevD.104.L091105 |
Appears in Collections: | 物理學系
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