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Search for lepton flavour violating decays of the Higgs boson to e tau and e mu in proton-proton collisions at root s=8 TeV

机译:在Root S = 8 Tev的质子 - 质子碰撞中搜索Lepton味道违反HIGGS BOSON的衰减和E MU

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摘要

A direct search for lepton flavour violating decays of the Higgs boson (H) in the H. etand H. e mu channels is described. The data sample used in the search was collected in proton-proton collisions at root s= 8 TeVwith the CMS detector at the LHC and corresponds to an integrated luminosity of 19.7 fb(-1). No evidence is found for lepton flavour violating decays in either final state. Upper limits on the branching fractions, B(H. et) < 0.69% and B(H. e mu) < 0.035%, are set at the 95% confidence level. The constraint set on B(H. et) 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. (C) 2016 The Author(s). Published by Elsevier B.V.
机译:直接搜索Lepton味道在H.Etand H中侵犯Higgs玻色子(h)的衰变。 搜索中使用的数据样本在LHC的CMS检测器中的根S = 8 Tevitto的质子 - 质子碰撞中收集,并对应于19.7FB(-1)的集成光度。 没有证据表明Lepton Flavor违反了最终状态的衰减。 分支馏分的上限,B(H.Et)<0.69%和B(H.E mu)<0.035%,设定为95%的置信水平。 B(h。et)上的约束是比现有间接限制更严格的数量级。 限制限制了标准模型中缺席违反育川联轴器的相应风味。 (c)2016提交人。 由elsevier b.v出版。

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