Search for the lepton flavor violating decay tau -> 3 mu in proton-proton collisions at root s=13 TeV

The CMS collaboration, A. M. Sirunyan, A. Tumasyan, P. Eerola, Laurent Forthomme, H. Kirschenmann, K. Österberg, M. Voutilainen, Erik Brücken, F. Garcia, J. Havukainen, V. Karimäki, Minsuk Kim, R. Kinnunen, T. Lampén, K. Lassila-Perini, S. Laurila, S. Lehti, T. Lindén, P. LuukkaJuska Pekkanen, H. Siikonen, E. Tuominen, J. Tuominiemi, Jussi Viinikainen, T. Tuuva

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Sammanfattning

Results are reported from a search for the lepton flavor violating decay tau -> 3 mu in proton-proton collisions at root s = 13 TeV. The data sample corresponds to an integrated luminosity of 33.2 fb(-1) recorded by the CMS experiment at the LHC in 2016. The search exploits tau leptons produced in both W boson and heavy-flavor hadron decays. No significant excess above the expected background is observed. An upper limit on the branching fraction B(tau -> 3 mu) of 8.0 x 10(-8) at 90% confidence level is obtained, with an expected upper limit of 6.9 x 10(-8).

Originalspråkengelska
Artikelnummer163
TidskriftJournal of High Energy Physics
Utgåva1
Antal sidor37
ISSN1029-8479
DOI
StatusPublicerad - 26 jan. 2021
MoE-publikationstypA1 Tidskriftsartikel-refererad

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