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dc.contributor.authorKalkan, Bora
dc.contributor.authorGodwal, Budhiram
dc.contributor.authorRaju, Selva Vennila
dc.contributor.authorJeanloz, Raymond
dc.date.accessioned2019-12-13T06:31:52Z
dc.date.available2019-12-13T06:31:52Z
dc.date.issued2016
dc.identifier.issn1029-8479
dc.identifier.urihttps://doi.org/10.1007/JHEP01(2016)096
dc.identifier.urihttp://hdl.handle.net/11655/18439
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.
dc.language.isoen
dc.publisherSpringer
dc.relation.isversionof10.1007/JHEP01(2016)096
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectPhysics
dc.titleObservation Of Top Quark Pairs Produced In Association With A Vector Boson In Pp Collisions At Root S=8 Tev
dc.typeinfo:eu-repo/semantics/article
dc.relation.journalJournal Of High Energy Physics
dc.contributor.departmentFizik Mühendisliği
dc.identifier.issue1
dc.description.indexWoS
dc.description.indexScopus


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