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

Sacha Davidson 1 P. Verdier 2
1 Théorie
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
2 D0
IPNL - Institut de Physique Nucléaire de Lyon
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}.
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http://hal.in2p3.fr/in2p3-00749209
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Submitted on : Wednesday, November 7, 2012 - 6:53:52 AM
Last modification on : Monday, June 28, 2021 - 3:56:02 PM

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Sacha 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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