Search for lepton-flavour-violating H → μτ decays of the Higgs boson with the ATLAS detector

Allbrooke, Benedict, Asquith, Lily, Cerri, Alessandro, Chavez Barajas, Carlos, De Santo, Antonella, Potter, Tina, Salvatore, Fabrizio, Santoyo Castillo, Itzebelt, Suruliz, Kerim, Sutton, Mark, Vivarelli, Iacopo and The ATLAS Collaboration, et al (2015) Search for lepton-flavour-violating H → μτ decays of the Higgs boson with the ATLAS detector. Journal of High Energy Physics, 11 (211). ISSN 1029-8479

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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 → 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%).

Item Type: Article
Keywords: Hadron-Hadron Scattering, Beyond Standard Model, Higgs physics, Lepton production
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Richard Chambers
Date Deposited: 20 Jun 2016 11:41
Last Modified: 07 Mar 2017 11:11
URI: http://sro.sussex.ac.uk/id/eprint/61609

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