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Título: | Search for B 0 s → μ + μ - and B0 → μ+ μ- decays |
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; 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: | Springer Nature | Citación: | Journal of High Energy Physics: 34 (2012) | Resumen: | A search for the rare decays B 0 s → μ +μ - and B 0 → μ + μ - is performed in pp collisions at ps = 7TeV, with a data sample corresponding to an integrated luminosity of 5 fb -1 collected by the CMS experiment at the LHC. In both decays, the number of events observed after all selection requirements is consistent with the expectation from background plus standard model signal predictions. The resulting upper limits on the branching fractions are B(B 0 s → μ + μ-) < 7:7 × 10 -9 and B(B 0 → μ +μ -) < 1:8 × 10 -9 at 95% confidence level. | Descripción: | Open Access: This article is distributed under the terms of the Creative Commons Attribution License.-- Chatrchyan, S. et al. | Versión del editor: | http://dx.doi.org/10.1007/JHEP04(2012)033 | URI: | http://hdl.handle.net/10261/109035 | DOI: | 10.1007/JHEP04(2012)033 | Identificadores: | doi: 10.1007/JHEP04(2012)033 e-issn: 1029-8479 |
Aparece en las colecciones: | (IFCA) Artículos |
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search for the rare decays.pdf | 781,73 kB | Adobe PDF | Visualizar/Abrir |
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