Limits on anomalous top quark gauge couplings from Tevatron and LHC data

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorINFN Trieste and SISSA
dc.date.accessioned2018-12-11T17:05:52Z
dc.date.available2018-12-11T17:05:52Z
dc.date.created2018-12-11T17:05:52Z
dc.date.issued2015-01-01
dc.identifierNuclear and Particle Physics Proceedings, v. 267-269, p. 312-318.
dc.identifier2405-6014
dc.identifierhttp://hdl.handle.net/11449/173493
dc.identifier10.1016/j.nuclphysbps.2015.10.124
dc.identifier2-s2.0-84988220964
dc.description.abstractWe review and update current limits on possible anomalous couplings of the top quark to W gauge bosons. We consider data from top quark decay (as encoded in the W-boson helicity fractions) and single-top production (in the t-, s- and Wt-channels). We find improved limits with respect to previous results (in most cases of almost one order of magnitude) and extend the analysis to include four-quark operators. We find that new physics is constrained to live above an energy scale between 430 GeV and 3.2 TeV, depending on the form of its contribution.
dc.languageeng
dc.relationNuclear and Particle Physics Proceedings
dc.relation0,275
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectAnomalous couplings
dc.subjectBSM physics
dc.subjectLHC
dc.subjectTop quark
dc.titleLimits on anomalous top quark gauge couplings from Tevatron and LHC data
dc.typeActas de congresos


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