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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/27842
Title: Exclusion of an Exotic Top Quark with-4/3 Electric Charge Using Soft Lepton Tagging
Authors: Aaltonen, T.; Cabrera, Susana; Cuenca Almenar, Cristóbal; Álvarez González, B.; Casal, Bruno; Cuevas, Javier; Gómez, G.; Rodrigo, Teresa; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila, Iván; Vilar, Rocío
Issue Date: 31-Aug-2010
Publisher: American Physical Society
Citation: Physical Review Letters 105(10): 101801 (2010)
Abstract: We present a measurement of the electric charge of the top quark using p (p) over bar collisions corresponding to an integrated luminosity of 2: 7 fb(-1) at the CDF II detector. We reconstruct t (t) over bar events in the lepton + 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.
Description: 7 páginas, 2 figuras, 3 tablas.-- CDF Collaboration: et al.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevLett.105.101801
URI: http://hdl.handle.net/10261/27842
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.105.101801
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