Franklin, MelissaHuth, JohnMorii, Masahiro2023-06-30ATLAS Collaboration. Search for lepton-flavour-violating H → μτ decays of the Higgs boson with the ATLAS detector. JHEP, 2015.https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37376332A direct search for lepton-flavour-violating H → μτ decays of the recently discovered Higgs boson with the ATLAS detector at the LHC is presented. The analysis is performed in the H → μτ had channel, where τ had is a hadronically decaying τ -lepton. The search is based on the data sample of proton-proton collisions collected by the ATLAS experiment corresponding to an integrated luminosity of 20.3 fb−1 at a centre-of-mass energy of s√=8 s = 8 TeV. No statistically significant excess of data over the predicted background is observed. The observed (expected) 95% confidence-level upper limit on the branching fraction, Br(H → μτ ), is 1.85% (1.24%).en-USJournal Article2018-08-0120152023-06-30