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| Título: | Search for the standard model Higgs boson decaying into two photons in pp collisions at √s=7TeV |
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 ; Jorda, C. CSIC; Lobelle Pardo, P. CSIC; López Virto, A. CSIC ORCID ; Marco, Jesús CSIC ORCID ; Marco, Rafael CSIC; Martínez-Rivero, Celso CSIC ORCID ; Matorras, Francisco CSIC ORCID ; Muñoz Sánchez, F. J. CSIC ORCID; Piedra, Jonatan CSIC ORCID ; Rodrigo, Teresa CSIC ORCID ; Rodríguez Marrero, Ana Y. CSIC; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Sobron Sañudo, M. CSIC; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID; CMS Collaboration | Fecha de publicación: | 2012 | Editor: | Elsevier | Citación: | Physics Letters 710(3): 403-425 (2012) | Resumen: | A search for a Higgs boson decaying into two photons is described. The analysis is performed using a dataset recorded by the CMS experiment at the LHC from pp collisions at a center-of-mass energy of 7 TeV, which corresponds to an integrated luminosity of 4.8 fb -1. Limits are set on the cross section of the standard model Higgs boson decaying to two photons. The expected exclusion limit at 95% confidence level is between 1.4 and 2.4 times the standard model cross section in the mass range between 110 and 150 GeV. The analysis of the data excludes, at 95% confidence level, the standard model Higgs boson decaying into two photons in the mass range 128 to 132 GeV. The largest excess of events above the expected standard model background is observed for a Higgs boson mass hypothesis of 124 GeV with a local significance of 3.1σ. The global significance of observing an excess with a local significance ≥3.1σ anywhere in the search range 110-150 GeV is estimated to be 1.8σ. More data are required to ascertain the origin of this excess. © 2012 CERN. | Descripción: | This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0.-- et al. | Versión del editor: | http://dx.doi.org/10.1016/j.physletb.2012.03.003 | URI: | http://hdl.handle.net/10261/52115 | DOI: | 10.1016/j.physletb.2012.03.003 | Identificadores: | doi: 10.1016/j.physletb.2012.03.003 issn: 0370-2693 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| Fichero | Descripción | Tamaño | Formato | |
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| Search for the standard model.pdf | 753,14 kB | Adobe PDF |  Visualizar/Abrir |
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