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dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorDragicevic, M.
dc.contributor.authorÖzdemir, Kadri
dc.contributor.authorCMS Collaboration
dc.date.accessioned2021-06-05T20:01:07Z
dc.date.available2021-06-05T20:01:07Z
dc.date.issued2015
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2015.07.053
dc.identifier.urihttps://hdl.handle.net/20.500.12960/1061
dc.descriptionWOS:000361562900048en_US
dc.description.abstractThe first direct search for lepton-flavour-violating decays of the recently discovered Higgs boson (H) is described. The search is performed in the H -> mu tau(e) and H -> mu tau(h) channels, where tau(e) and tau(h) are tau leptons reconstructed in the electronic and hadronic decay channels, respectively. The data sample used in this search was collected in pp collisions at a centre-of-mass energy of root s = 8 TeV with the CMS experiment at the CERN LHC and corresponds to an integrated luminosity of 19.7 fb(-1). The sensitivity of the search is an order of magnitude better than the existing indirect limits. A slight excess of signal events with a significance of 2.4 standard deviations is observed. The p-value of this excess at M-H = 125 GeV is 0.010. The best fit branching fraction is beta(H -> mu tau) = (0.84(-0.37)(+0.39))%. A constraint on the branching fraction, beta(H -> mu tau) < 1.51% at 95% confidence level is set. This limit is subsequently used to constrain the mu-tau Yukawa couplings to be less than 3.6 x 10(-3). (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysics Letters Ben_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCMSen_US
dc.subjectPhysicsen_US
dc.subjectHiggsen_US
dc.subjectMuonsen_US
dc.subjectTausen_US
dc.subjectLepton-Flavour-Violationen_US
dc.titleSearch for lepton-flavour-violating decays of the Higgs bosonen_US
dc.typearticleen_US
dc.authorid0000-0002-0103-1488
dc.departmentMühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.contributor.institutionauthorÖzdemir, Kadri
dc.identifier.doi10.1016/j.physletb.2015.07.053
dc.identifier.volume749en_US
dc.identifier.startpage337en_US
dc.identifier.endpage362en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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