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Title

Search for heavy bottom-like quarks in 4.9 inverse femtobarns of pp collisions at √s = 7 TeV

AuthorsBrochero Cifuentes, J. A. ; Cabrillo, I. J. ; Cabrillo, I. J. ; Calderon, Alicia ; Chuang, S. H. ; Duarte Campderros, J. ; Felcini, Marta ; 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 ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío ; CMS Collaboration
Issue Date2012
PublisherSpringer
CitationJournal of High Energy Physics: 123 (2012)
AbstractResults are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at sqrt(s) = 7 TeV, undertaken with the CMS experiment at the LHC. The b' quarks are assumed to decay exclusively to tW. The b' anti-b' to t W(+) anti-t W(-) process can be identified by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 inverse femtobarns, observed events are compared to the standard model background predictions, and the existence of b' quarks having masses below 611 GeV/c2 is excluded at 95% confidence level.
DescriptionOpen Access: This article is distributed under the terms of the Creative Commons Attribution License.-- Chatrchyan, S. et al.
Publisher version (URL)http://dx.doi.org/10.1007/JHEP05(2012)123
URIhttp://hdl.handle.net/10261/53207
DOI10.1007/JHEP05(2012)123
E-ISSN1029-8479
Appears in Collections:(IFCA) Artículos
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