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

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}.
docType_s : Journal articles
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http://hal.in2p3.fr/in2p3-00749209
Contributor : Florès Sylvie <>
Submitted on : Wednesday, November 7, 2012 - 6:00:53 AM
Last modification on : Wednesday, November 7, 2012 - 6:00:53 AM

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

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