CMS-PAS-BPH-21-005 | ||
Search for lepton flavor violating τ→ 3μ decays in proton-proton collisions at √s = 13 TeV | ||
CMS Collaboration | ||
26 May 2023 | ||
Abstract: A search for lepton flavor violating τ→ 3μ decays is performed using 97.7 fb−1 of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment at the LHC in 2017 and 2018. Tau leptons produced in heavy-flavor hadron decays and produced in W boson decays are exploited in the analysis. The results of this search are combined with the previous result based on data collected in 2016, to obtain a total integrated luminosity of 131 fb−1. The observed (expected) upper limit at 90% confidence level on the branching fraction B(τ→3μ) is 2.9 × 10−8 (2.4 × 10−8). The observed (expected) upper limit at 95% confidence level on the branching fraction B(τ→3μ) is 3.6 × 10−8 (3.0 × 10−8). | ||
Links:
CDS record (PDF) ;
Physics Briefing ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Accepted by PLB. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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