A 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 →µτhad channel, where τhad is a hadronically decaying τ-lepton. The search is based on the data sample of proton-proton collisions collected by the ATLAS ex- periment 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(H →µτ), is 1.85% (1.24%).
Search for lepton-flavour-violating H -> mu tau decays of the Higgs boson with the ATLAS detector
Spanò, F.Membro del Collaboration Group
;Bruscino, N.Membro del Collaboration Group
;
2015-01-01
Abstract
A 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 →µτhad channel, where τhad is a hadronically decaying τ-lepton. The search is based on the data sample of proton-proton collisions collected by the ATLAS ex- periment 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(H →µτ), is 1.85% (1.24%).| File | Dimensione | Formato | |
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