We report on a measurement of the top-quark electric charge in t (t) over bar 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 root 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.
|Titolo:||Exclusion of exotic top-like quarks with-4/3 electric charge using jet-charge tagging in single-lepton t(t)over-bar events at CDF|
|Data di pubblicazione:||2013|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1103/PhysRevD.88.032003|
|Appare nelle tipologie:||1.1 Articolo in rivista|