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| Título: | Measurement of J/ψ and ψ(2S) prompt double-differential cross sections in pp collisions at √s=7 TeV |
Autor: | Khachatryan, V.; Brochero Cifuentes, J. A. CSIC ORCID; Cabrillo, I. J. CSIC ORCID ; Calderon, Alicia ; Duarte Campderros, J. CSIC ORCID ; Fernández-García, Marcos CSIC ORCID ; Gómez, Gervasio CSIC ORCID ; Graziano, A. 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 ; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID; CMS Collaboration | Fecha de publicación: | 2015 | Editor: | American Physical Society | Citación: | Physical Review Letters 114(19): 191802 (2015) | Resumen: | The double-differential cross sections of promptly produced J/ψ and ψ(2S) mesons are measured in pp collisions at √s=7 TeV, as a function of transverse momentum pT and absolute rapidity |y|. The analysis uses J/ψ and ψ(2S) dimuon samples collected by the CMS experiment, corresponding to integrated luminosities of 4.55 and 4.90 fb−1, respectively. The results are based on a two-dimensional analysis of the dimuon invariant mass and decay length, and extend to pT=120 and 100 GeV for the J/ψ and ψ(2S), respectively, when integrated over the interval |y|<1.2. The ratio of the ψ(2S) to J/ψ cross sections is also reported for |y|<1.2, over the range 10<pT<100 GeV. These are the highest pT values for which the cross sections and ratio have been measured. | Descripción: | et al. | Versión del editor: | https://doi.org/10.1103/PhysRevLett.114.191802 | URI: | http://hdl.handle.net/10261/140042 | DOI: | 10.1103/PhysRevLett.114.191802 | Identificadores: | doi: 10.1103/PhysRevLett.114.191802 e-issn: 1079-7114 issn: 0031-9007 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| Cross Sectionpp.pdf | 462,86 kB | Adobe PDF |  Visualizar/Abrir |
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