Search for flavor-changing neutral currents in top-quark decays t -> Zq in pp collisions at root s=8 TeV
dc.contributor.author | Chatrchyan, S. | |
dc.contributor.author | Işıldak, Bora | |
dc.date.accessioned | 2014-12-22T08:36:17Z | |
dc.date.available | 2014-12-22T08:36:17Z | |
dc.date.issued | 2014-05-02 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://hdl.handle.net/10679/764 | |
dc.identifier.uri | http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.171802 | |
dc.description.abstract | A search for flavor-changing neutral currents in top-quark decays t -> Zq is performed in events produced from the decay chain (tt) over bar -> Zq + Wb, where both vector bosons decay leptonically, producing a final state with three leptons (electrons or muons). A data set collected with the CMS detector at the LHC is used, corresponding to an integrated luminosity of 19.7 fb(-1) of proton-proton collisions at a center-of-mass energy of 8 TeV. No excess is seen in the observed number of events relative to the standard model prediction; thus, no evidence for flavor-changing neutral currents in top-quark decays is found. A combination with a previous search at 7 TeV excludes a t. Zq branching fraction greater than 0.05% at the 95% confidence level. | en_US |
dc.description.sponsorship | BMWF ; 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.iso | eng | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation | info:turkey/grantAgreement/TUBITAK | en_US |
dc.relation.ispartof | Physical Review Letters | |
dc.rights | openAccess | |
dc.title | Search for flavor-changing neutral currents in top-quark decays t -> Zq in pp collisions at root s=8 TeV | en_US |
dc.type | Article | en_US |
dc.description.version | publisher version | |
dc.peerreviewed | yes | en_US |
dc.publicationstatus | published | en_US |
dc.contributor.department | Özyeğin University | |
dc.contributor.authorID | (ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora | |
dc.contributor.ozuauthor | Işıldak, Bora | |
dc.creator | The CMS Collaboration | |
dc.identifier.volume | 112 | |
dc.identifier.issue | 17 | |
dc.identifier.wos | WOS:000336099500003 | |
dc.identifier.doi | 10.1103/PhysRevLett.112.171802 | |
dc.identifier.scopus | SCOPUS:2-s2.0-84899876401 | |
dc.contributor.authorMale | 1 |
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