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Exclusion of exotic top-like quarks with -4/3 electric charge using jet-charge tagging in single-lepton tt̄ events at CDF

AuthorsAaltonen, T.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Palencia, Enrique ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vilar, Rocío ; Vizán, J. ; CDF Collaboration
Issue Date2013
PublisherAmerican Physical Society
CitationPhysical Review D 88: 032003 (2013)
AbstractWe report on a measurement of the top-quark electric charge in tt̄ events in which one W boson originating from the top-quark pair decays into leptons and the other into hadrons. The event sample was collected by the CDF II detector in √s=1.96 TeV proton-antiproton collisions and corresponds to 5.6 fb-1. We find the data to be consistent with the standard model and exclude the existence of an exotic quark with -4/3 electric charge and mass of the conventional top quark at the 99% confidence level. © 2013 American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.88.032003
Identifiersdoi: 10.1103/PhysRevD.88.032003
issn: 1550-7998
e-issn: 1550-2368
Appears in Collections:(IFCA) Artículos
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