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dc.contributor.authorKhachatryan, V.
dc.contributor.authorIşıldak, Bora
dc.date.accessioned2016-06-30T12:33:27Z
dc.date.available2016-06-30T12:33:27Z
dc.date.issued2015-10-07
dc.identifier.issn1873-2445
dc.identifier.urihttp://hdl.handle.net/10679/4150
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0370269315005638
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→μτe and H→μτh channels, where τe and τh 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 View the MathML source 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 MH=125 GeV is 0.010. The best fit branching fraction is View the MathML source. A constraint on the branching fraction, B(H→μτ)<1.51% at 95% confidence level is set. This limit is subsequently used to constrain the μ–τ Yukawa couplings to be less than 3.6×10−3.
dc.description.sponsorshipBMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MES ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MESTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; STAR ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; DOE ; NSF.
dc.language.isoengen_US
dc.publisherElsevier
dc.relationinfo:turkey/grantAgreement/TUBITAK
dc.relation.ispartofPhysics Letters B
dc.rightsopenAccess
dc.titleSearch for lepton-flavour-violating decays of the Higgs bosonen_US
dc.typeArticleen_US
dc.description.versionpublisher version
dc.peerreviewedyes
dc.publicationstatuspublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora
dc.contributor.ozuauthorIşıldak, Bora
dc.creatorThe CMS Collaboration
dc.identifier.volume749
dc.identifier.startpage337
dc.identifier.endpage362
dc.identifier.wosWOS:000361562900048
dc.identifier.doi10.1016/j.physletb.2015.07.053
dc.subject.keywordsCMS
dc.subject.keywordsPhysics
dc.subject.keywordsHiggs
dc.subject.keywordsMuons
dc.subject.keywordsTaus
dc.subject.keywordsLepton-flavour-violation
dc.identifier.scopusSCOPUS:2-s2.0-84940403742
dc.contributor.authorMale1


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