Observation of Single Top Quark Production in Association with a Z Boson in Proton-Proton Collisions at ? s = 13 ?TeV

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dc.authorid249433en_US
dc.authorid291820en_US
dc.contributor.authorGürpınar Güler, Emine
dc.contributor.authorBilki, Burak
dc.contributor.author., ve diğer.
dc.date.accessioned2019-12-30T11:45:47Z
dc.date.available2019-12-30T11:45:47Z
dc.date.issued2019
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractThe observation of single top quark production in association with a Z boson and a quark (tZq) is reported. Events from proton-proton collisions at a center-of-mass energy of 13 TeV containing three charged leptons (either electrons or muons) and at least two jets are analyzed. The data were collected with the CMS detector in 2016 and 2017 and correspond to an integrated uminosity of 77.4fb?1. The increased integrated luminosity, a multivariate lepton identification, and a redesigned analysis strategy mprove significantly the sensitivity of the analysis compared to previous searches for tZq production. The tZq signal is observed ith a significance well over 5 standard deviations. The measured tZq production cross section is ?(pp?tZq?t?+??q)=111±13(stat)+11?9(syst)?fb, for dilepton invariant masses above 30 GeV, in agreement with the standard model expectation.en_US
dc.identifier.citationPhysical Review Letters 122, 132003 (2019en_US
dc.identifier.doi10.1103/PhysRevLett.122.132003
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.pmid31012605en_US
dc.identifier.scopus2-s2.0-85064398210en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.122.132003
dc.identifier.wosWOS:000463901800006en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherThe CMS Collaborationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.subjectTop quarken_US
dc.subjectW & Z bosonsen_US
dc.subjectHadron collidersen_US
dc.titleObservation of Single Top Quark Production in Association with a Z Boson in Proton-Proton Collisions at ? s = 13 ?TeVen_US
dc.typeArticleen_US

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