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| Título: | Measurement of exclusive ϒ photoproduction from protons in p Pb collisions at √sNN = 5.02TeV |
Autor: | Sirunyan, A. M.; Cabrillo, I. J. CSIC ORCID ; Calderon, Alicia ; Chazin Quero, B. CSIC; Duarte Campderros, J. CSIC ORCID ; Fernández-García, Marcos CSIC ORCID ; Fernández Manteca, P. J. CSIC ORCID; García Alonso, A. CSIC ORCID; García-Ferrero, J. CSIC ; Gómez, Gervasio CSIC ORCID ; López Virto, A. CSIC ORCID ; Marco, Jesús CSIC ORCID ; Martínez-Rivero, Celso CSIC ORCID ; Martínez Ruiz del Arbol, P. CSIC ORCID; Matorras, Francisco CSIC ORCID ; Piedra, Jonatan CSIC ORCID ; Prieels, C. CSIC; Rodrigo, Teresa CSIC ORCID ; Ruiz Jimeno, Alberto CSIC ORCID ; Scodellaro, Luca CSIC ORCID ; Trevisani, N. CSIC ORCID ; Vila, Iván CSIC ORCID; Vilar Cortabitarte, R. CSIC ORCID | Fecha de publicación: | 2019 | Editor: | Springer Nature | Citación: | European Physical Journal C 79: 277 (2019) | Resumen: | The exclusive photoproduction of ϒ(nS) meson states from protons, γ p → ϒ(nS) p (with n = 1, 2, 3), is studied in ultraperipheral pPb collisions at a centre-of-mass energy per nucleon pair of √sNN = 5.02 TeV. The measurement is performed using the ϒ(nS) → μ+μ− decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6 nb−1. Differential cross sections as functions of the ϒ(nS) transverse momentum squared p2 T, and rapidity y, are presented. The ϒ(1S) photoproduction cross section is extracted in the rapidity range |y| < 2.2, which corresponds to photon–proton centre-ofmass energies in the range 91 < Wγ p < 826 GeV. The data are compared to theoretical predictions based on perturbative quantum chromodynamics and to previous measurements. | Descripción: | CMS Collaboration: et al. | Versión del editor: | https://doi.org/10.1140/epjc/s10052-019-6774-8 | URI: | http://hdl.handle.net/10261/213326 | DOI: | 10.1140/epjc/s10052-019-6774-8 | Identificadores: | doi: 10.1140/epjc/s10052-019-6774-8 e-issn: 1434-6052 issn: 1434-6044 |
| Aparece en las colecciones: | (IFCA) Artículos |
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| measurephoto.pdf | 982,09 kB | Adobe PDF |  Visualizar/Abrir |
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