Search for lepton-flavor-violating τ−→ μ−μ+μ− decays at Belle II
Publication
, Journal Article
Adachi, I; Aggarwal, L; Aihara, H; Akopov, N; Aloisio, A; Althubiti, N; Anh Ky, N; Asner, DM; Atmacan, H; Aushev, V; Aversano, M; Ayad, R ...
Published in: Journal of High Energy Physics
September 1, 2024
We present the result of a search for the charged-lepton-flavor violating decay τ− → μ−μ+μ− using a 424 fb−1 sample of data recorded by the Belle II experiment at the SuperKEKB e+e− collider. The selection of e+e− → τ+τ− events is based on an inclusive reconstruction of the non-signal tau decay, and on a boosted decision tree to suppress background. We observe one signal candidate, which is compatible with the expectation from background processes. We set a 90% confidence level upper limit of 1.9 × 10−8 on the branching fraction of the τ−→ μ−μ+μ− decay, which is the most stringent bound to date.
Duke Scholars
Published In
Journal of High Energy Physics
DOI
EISSN
1029-8479
Publication Date
September 1, 2024
Volume
2024
Issue
9
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5106 Nuclear and plasma physics
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0105 Mathematical Physics
Citation
APA
Chicago
ICMJE
MLA
NLM
Adachi, I., Aggarwal, L., Aihara, H., Akopov, N., Aloisio, A., Althubiti, N., … Finck, C. (2024). Search for lepton-flavor-violating τ−→ μ−μ+μ− decays at Belle II. Journal of High Energy Physics, 2024(9). https://doi.org/10.1007/JHEP09(2024)062
Adachi, I., L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Althubiti, N. Anh Ky, et al. “Search for lepton-flavor-violating τ−→ μ−μ+μ− decays at Belle II.” Journal of High Energy Physics 2024, no. 9 (September 1, 2024). https://doi.org/10.1007/JHEP09(2024)062.
Adachi I, Aggarwal L, Aihara H, Akopov N, Aloisio A, Althubiti N, et al. Search for lepton-flavor-violating τ−→ μ−μ+μ− decays at Belle II. Journal of High Energy Physics. 2024 Sep 1;2024(9).
Adachi, I., et al. “Search for lepton-flavor-violating τ−→ μ−μ+μ− decays at Belle II.” Journal of High Energy Physics, vol. 2024, no. 9, Sept. 2024. Scopus, doi:10.1007/JHEP09(2024)062.
Adachi I, Aggarwal L, Aihara H, Akopov N, Aloisio A, Althubiti N, Anh Ky N, Asner DM, Atmacan H, Aushev V, Aversano M, Ayad R, Babu V, Bae H, Bahinipati S, Bambade P, Banerjee S, Bansal S, Barrett M, Baudot J, Baur A, Beaubien A, Becherer F, Becker J, Bennett JV, Bernlochner FU, Bertacchi V, Bertemes M, Bertholet E, Bessner M, Bettarini S, Bianchi F, Bierwirth L, Bilka T, Biswas D, Bobrov A, Bodrov D, Bolz A, Borah J, Boschetti A, Bozek A, Bračko M, Branchini P, Browder TE, Budano A, Bussino S, Campagna Q, Campajola M, Cao L, Casarosa G, Cecchi C, Cerasoli J, Chang MC, Chang P, Cheaib R, Cheema P, Chen C, Cheon BG, Chilikin K, Chirapatpimol K, Cho HE, Cho K, Cho SJ, Choi SK, Choudhury S, Cochran J, Corona L, Cui JX, Das S, Dattola F, De La Cruz-Burelo E, De La Motte SA, De Nardo G, De Nuccio M, De Pietro G, de Sangro R, Destefanis M, Dey S, Dhamija R, Di Canto A, Di Capua F, Dingfelder J, Doležal Z, Domínguez Jiménez I, Dong TV, Dorigo M, Dorner D, Dort K, Dossett D, Dreyer S, Dubey S, Dugic K, Dujany G, Ecker P, Eliachevitch M, Feichtinger P, Ferber T, Ferlewicz D, Fillinger T, Finck C. Search for lepton-flavor-violating τ−→ μ−μ+μ− decays at Belle II. Journal of High Energy Physics. 2024 Sep 1;2024(9).
Published In
Journal of High Energy Physics
DOI
EISSN
1029-8479
Publication Date
September 1, 2024
Volume
2024
Issue
9
Related Subject Headings
- Nuclear & Particles Physics
- 5107 Particle and high energy physics
- 5106 Nuclear and plasma physics
- 4902 Mathematical physics
- 0206 Quantum Physics
- 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
- 0105 Mathematical Physics