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Exclusion of an exotic top quark with -4/3 electric charge using soft lepton tagging

Abstract: We present a measurement of the electric charge of the top quark using pp collisions corresponding to an integrated luminosity of 2:7 fb 1 at the CDF II detector. We reconstruct tt events in the lepton þ jets final state. We use soft lepton taggers to determine the flavor of the b jets, which we use to reconstruct the top quark?s electric charge and exclude an exotic top quark with 4=3 charge at 95% confidence level. This is the strongest exclusion of the exotic charge scenario and the first to use soft leptons for this purpose

Other publications of the same journal or congress with authors from the University of Cantabria

Authorship: Aaltonen T., Adelman J., Álvarez González B., Amerio S., Amidei D., Anastassov A., Annovi A., Antos J., Apollinari G., Appel J., Apresyan A., Arisawa T., Artikov A., Asaadi J., Ashmanskas W., Attal A., Aurisano A., Azfar F., Badgett W., Barbaro-Galtieri A., Barnes V.E., Barnett B.A., Barria P., Bartos P., Bauer G., Beauchemin P.H., Bedeschi F., Beecher D., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A.

Fuente: Physical Review Letters, 2010, 105(10), 101801

Publisher: American Physical Society

Publication date: 01/09/2010

No. of pages: 7

Publication type: Article

DOI: 10.1103/PhysRevLett.105.101801

ISSN: 0031-9007,1079-7114

Publication Url: https://doi.org/10.1103/PhysRevLett.105.101801

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