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.

T., A., S., A., D., A., A., A., A., A., J., A., et al. (2013). 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. PHYSICAL REVIEW. D. PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(3) [10.1103/PhysRevD.88.032003].

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

BARRIA, PATRIZIA;GAROSI, PAOLA;MAESTRO, PAOLO;RUFFINI, FABRIZIO;
2013-01-01

Abstract

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.
T., A., S., A., D., A., A., A., A., A., J., A., et al. (2013). 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. PHYSICAL REVIEW. D. PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(3) [10.1103/PhysRevD.88.032003].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/45321
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