Observation of top quark pairs produced in association with a vector boson in pp collisions at root s=8 TeV

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dc.WoS.categoriesPhysics, Particles & Fieldsen_US
dc.authorid0000-0002-9007-8260en_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-12-18T07:29:35Z
dc.date.available2020-12-18T07:29:35Z
dc.date.issued2016-01-18
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractMeasurements of the cross sections for top quark pairs produced in association with a W or Z boson are presented, using 8 TeV pp collision data corresponding to an integrated luminosity of 19.5 fb(-1), collected by the CMS experiment at the LHC. Final states are selected in which the associated W boson decays to a charged lepton and a neutrino or the Z boson decays to two charged leptons. Signal events are identified by matching reconstructed objects in the detector to specific final state particles from t (t) over barW or t (t) over barZ decays. The t (t) over barW cross section is measured to be 382(-102)(+117) fb with a significance of 4.8 standard deviations from the background-only hypothesis. The t (t) over barZ cross section is measured to be 242(-55)(+65) fb with a significance of 6.4 standard deviations from the background-only hypothesis. These measurements are used to set bounds on five anomalous dimension-six operators that would affect the t (t) over barW and t (t) over barZ cross sections.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/JHEP01(2016)096
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85009932536en_US
dc.identifier.urihttps://hdl.handle.net/11411/2920
dc.identifier.urihttps://doi.org/10.1007/JHEP01(2016)096
dc.identifier.wosWOS:000370438700001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue1en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors100+en_US
dc.publisherSpringeren_US
dc.relation.ispartofJournal Of High Energy Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectElectroweak interactionen_US
dc.subjectHadron-Hadron scatteringen_US
dc.subjectTop physicsen_US
dc.titleObservation of top quark pairs produced in association with a vector boson in pp collisions at root s=8 TeV
dc.typeArticle

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