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Search for lepton flavour violating decays of the Higgs boson to eτand eμin proton–proton collisions at √s=8TeV
CMS Collaboration
CMS Collaboration
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Abstract
A direct search for lepton flavour violating decays of the Higgs boson (H) in the H →eτand H →eμchannels is described. The data sample used in the search was collected in proton–proton collisions at √s=8TeVwith the CMS detector at the LHC and corresponds to an integrated luminosity of 19.7fb−1. No evidence is found for lepton flavour violating decays in either final state. Upper limits on the branching fractions, B(H →eτ) <0.69%and B(H →eμ) <0.035%, are set at the 95% confidence level. The constraint set on B(H →eτ)is an order of magnitude more stringent than the existing indirect limits. The limits are used to constrain the corresponding flavour violating Yukawa couplings, absent in the standard model.
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2016-10-06
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Elsevier
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CMSCollaboration_2016.pdf
Adobe PDF, 1.79 MB
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Khachatryan, V., Bansal, S., Hindrichs, O., Barnett, B. A., Ciocci, M. A., Weiler, T., ... & Canelli, M. F. (2016). Search for lepton flavour violating decays of the Higgs boson to e τ and e μ in proton–proton collisions at s= 8 TeV. Physics letters B.