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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/53217
Title: Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s = 7 TeV
Authors: Brochero Cifuentes, J. A.; Cabrillo, I. J.; Calderón-Urrea, Alejandro; Chuang, S. H.; Duarte Campderros, J.; Felcini, M.; Fernández, M.; Gómez, G.; González Sánchez, J.; Jorda, C.; Lobelle Pardo, P.; López Virto, A.; Marco, Jesús; Marco, Rafael; Martínez-Rivero, Celso; Matorras, Francisco; Muñoz Sánchez, F. J.; Rodrigo, Teresa; Rodriguez Marrero, Ana Y.; Ruiz Jimeno, Alberto; Scodellaro, Luca; Sobron Sañudo, M.; Vila, Iván; Vilar, Rocío
Issue Date: 2012
Publisher: Elsevier
Citation: Physics Letters B 716(1): 103-121 (2012)
Abstract: The results of a search for pair production of a heavy, top-like quark, t', in the decay mode (t' anti-t') to (b anti-W anti-b W) to (b anti-lepton neutrino anti-b lepton anti-neutrino) are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 inverse femtobarns in pp collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC. The observed number of events agrees with the expectation from standard model processes, and no evidence of t'anti-t' production is found. Upper limits on the production cross section as a function of t' mass are presented, and t' masses below 557 GeV/c2 are excluded at the 95% confidence level.
Description: 27 páginas, 2 figuras, 5 tablas.-- CMS Collaboration: Chatrchyan, S. et al.-- This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0
Publisher version (URL): http://dx.doi.org/10.1016/j.physletb.2012.07.059
URI: http://hdl.handle.net/10261/53217
DOI: 10.1016/j.physletb.2012.07.059
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