Measurement of the W-boson helicity in top-quark decays from tt¯ production in lepton+jets events in pp collisions at?s = 7 TeV Th

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dc.contributor.authorCMS Collaboration
dc.contributor.authorCiftci
dc.contributor.authorR.
dc.date.accessioned2019-10-27T08:00:25Z
dc.date.available2019-10-27T08:00:25Z
dc.date.issued2013
dc.departmentEge Üniversitesien_US
dc.description.abstractThe W-boson helicity fractions in top-quark decays are measured with tt¯ events in the lepton+jets final state, using proton-proton collisions at a centre-of-mass energy of 7TeV, collected in 2011 with the CMS detector at the LHC. The data sample corresponds to an integrated luminosity of 5.0 fb -1. The measured fractions of longitudinal, left-, and right-handed helicity are F0 = 0:682±0:030 (stat.)± 0:033 (syst.), F= 0:310 ±0:022 (stat.)± 0:022 (syst.), and F= 0:008± 0:012 (stat.) ± 0:014 (syst.), consistent with the standard model predictions. The measured fractions are used to probe the existence of anomalous Wtb couplings. Exclusion limits on the real components of the anomalous couplings gL; gR are also derived.en_US
dc.identifier.doi10.1007/JHEP10(2013)167
dc.identifier.issn1126-6708
dc.identifier.issn1126-6708en_US
dc.identifier.issue10en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1007/JHEP10(2013)167
dc.identifier.urihttps://hdl.handle.net/11454/24720
dc.identifier.volume2013en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringer Verlagen_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.subjectHadron-Hadron Scatteringen_US
dc.subjectTop physicsen_US
dc.titleMeasurement of the W-boson helicity in top-quark decays from tt¯ production in lepton+jets events in pp collisions at?s = 7 TeV Then_US
dc.typeArticleen_US

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