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Journal Articles Physical Review D Year : 2012

LHC sensitivity to the decay of a Higgs boson to tau mu

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Sacha Davidson
P. Verdier
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Abstract

We study the sensitivity of the LHC, with 20 inverse-fb of data, to lepton flavour violating Higgs boson decays h -> tau+ mu- (and h -> tau+ e-). We consider the large population of Higgses produced in gluon fusion, combined with leptonic decays of the tau, and estimate that the LHC could set a 95 % confidence level bound BR(h -> tau mu) < 4.5 \times 10^{-3}. This correponds to a coupling of order the Cheng-Sher ansatz y_{tau mu} = sqrt{m_tau m_mu/v^2}.

Dates and versions

in2p3-00749209 , version 1 (07-11-2012)

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Sacha Davidson, P. Verdier. LHC sensitivity to the decay of a Higgs boson to tau mu. Physical Review D, 2012, 86, pp.111701(R). ⟨10.1103/PhysRevD.86.111701⟩. ⟨in2p3-00749209⟩
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