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Search for lepton-flavor violating decays of the Higgs boson in the μτ and eτ final states in proton-proton collisions at s√ = 13 TeV

A search is presented for lepton-flavor violating decays of the Higgs boson to μτ and eτ. The data set corresponds to an integrated luminosity of 137 fb−1 collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. No significant excess has been found, and the results are interpreted in terms of upper limits on lepton-flavor violating branching fractions of the Higgs boson. The observed (expected) upper limits on the branching fractions are, respectively, B(H →μτ) < 0.15 (0.15)% and B(H→eτ) < 0.22 (0.16)% at 95% confidence level.

high energy physics ; experimental particle physics ; LHC ; CMS ; radiation-hard detectors ; Si microstrip and pad detectors ; radiation damage to detector materials (solid state) ; particle tracking detectors (solid-state detectors) ; radiation: damage ; CMS: upgrade ; tracking detector ; semiconductor detector: design ; semiconductor detector: microstrip ; performance ; Hadron-Hadron scattering (experiments) ; Top physics ; p p: scattering ; p p: colliding beams ; top: single production

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