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| Título: | Measurement of the t̄t production cross section in the all-jet final state in pp collisions at √s=7 TeV |
Autor: | Chatrchyan, S.; Brochero Cifuentes, J. A. CSIC ORCID; Cabrillo, I. J. CSIC ORCID ; Calderon, Alicia ; Chuang, S. H. CSIC; Duarte Campderros, J. CSIC ORCID ; Felcini, Marta CSIC ORCID; Fernández-García, Marcos CSIC ORCID ; Gómez, Gervasio CSIC ORCID ; González Sánchez, J. CSIC ; Graziano, A. CSIC; Jorda, C. CSIC; López Virto, A. CSIC ORCID ; Marco, Jesús CSIC ORCID ; Marco, Rafael CSIC; Martínez-Rivero, Celso CSIC ORCID ; Martínez-Rivero, Celso CSIC ORCID ; Matorras, Francisco CSIC ORCID ; Muñoz Sánchez, F. J. CSIC ORCID; Rodrigo, Teresa CSIC ORCID ; Rodríguez Marrero, Ana Y. CSIC; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID; CMS Collaboration | Fecha de publicación: | 2013 | Editor: | Springer Nature | Citación: | Journal of High Energy Physics 5: 65 (2013) | Resumen: | A measurement is presented of the t̄t production cross section σt̄t in proton-proton collisions at a centre-of-mass energy of 7 TeV, in the all-jet final state that contains at least six jets, two of which are tagged as originating from b quarks. The data correspond to an integrated luminosity of 3.54 fb-1, collected with the CMS detector at the LHC. The cross section is determined through an unbinned maximum likelihood fit of background and t̄t signal to the reconstructed mass spectrum of t̄t candidates in the data, in which events are subjected to a kinematic fit assuming a t̄t → W+bW-̄b → 6 jets hypothesis. The measurement yields σt̄t = 139±10(stat.)±26(syst.)±3(lum.)pb, a result consistent with those obtained in other t̄t decay channels, as well as with predictions of the standard model. © 2013 CERN for the benefit of the CMS collaboration. | Descripción: | Open Access: This article is distributed under the terms of the Creative Commons Attribution License.-- et al. | Versión del editor: | http://dx.doi.org/10.1007/JHEP05(2013)065 | URI: | http://hdl.handle.net/10261/110187 | DOI: | 10.1007/JHEP05(2013)065 | Identificadores: | doi: 10.1007/JHEP05(2013)065 e-issn: 1029-8479 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| final state in pp collisions.pdf | 700,41 kB | Adobe PDF |  Visualizar/Abrir |
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