Exclusion of exotic top-like quarks with -4/3 electric charge using jet-charge tagging in single-lepton t[¯ over t] events at CDF

Exclusion of exotic top-like quarks with -4/3 electric charge using jet-charge tagging in single-lepton t[¯ over t] events at CDF

We report on a measurement of the top-quark electric charge in tt̅ 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...

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Bibliographic Details
Main Authors: Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Paus, Christoph M. E. (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2013-10-09T13:58:37Z.
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Summary:We report on a measurement of the top-quark electric charge in tt̅ 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[superscript -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.
United States. Dept. of Energy
National Science Foundation (U.S.)
Alfred P. Sloan Foundation

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