Search for lepton-flavour-violating H→μτ decays of the Higgs boson with the ATLAS detector · arXivDesk
1508.03372Aug 13, 2015Comments: 15 pages plus author list + cover pages (31 pages total), 3 figures, 3 tables, submitted to JHEP. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2014-08/
Search for lepton-flavour-violating H→μτ decays of the Higgs boson with the ATLAS detector
A direct search for lepton-flavour-violating (LFV) 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→μτhad channel, where τhad
Nearby in the stack
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
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(