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Title

Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at √s=7  TeV

AuthorsChatrchyan, S.; Brochero Cifuentes, J. A. ; 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 ; Martínez-Rivero, Celso ; Matorras, Francisco ; Muñoz Sánchez, F. J. ; Piedra, Jonatan ; Rodrigo, Teresa ; Rodríguez Marrero, Ana Y. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío
Issue DateAug-2011
PublisherAmerican Physical Society
CitationPhysical Review Letters 107(9): 091802 (2011)
AbstractElectroweak production of the top quark is measured for the first time in pp collisions at √s=7  TeV, using a data set collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36  pb-1. With an event selection optimized for t-channel production, two complementary analyses are performed. The first one exploits the special angular properties of the signal, together with background estimates from the data. The second approach uses a multivariate analysis technique to probe the compatibility with signal topology expected from electroweak top-quark production. The combined measurement of the cross section is 83.6±29.8(stat+syst)±3.3(lumi)  pb, consistent with the standard model expectation.
Description15 páginas, 3 figuras, 1 tabla.-- PACS numbers: 13.85.Ni, 12.15.Ji, 14.65.Ha.-- Creative Commons Attribution 3.0 License.-- CMS collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.107.091802
URIhttp://hdl.handle.net/10261/46291
DOI10.1103/PhysRevLett.107.091802
ISSN0031-9007
E-ISSN1079-7114
Appears in Collections:(IFCA) Artículos
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