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LHCb Collaboration; Oyanguren Campos, Arantza; Ruiz Valls, Pablo | |||
Aquest document és un/a article, creat/da en: 2013 | |||
Este documento está disponible también en : 10.1007/JHEP06(2013)064 |
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The production of J/psi and gamma mesons in pp collisions at root s = 8 TeV is studied with the LHCb detector. The J/psi and gamma mesons are reconstructed in the mu(+)mu(-) decay mode and the signal yields are determined with a fit to the mu(+)mu(-) invariant mass distributions. The analysis is performed in the rapidity range 2.0 < y < 4.5 and transverse momentum range 0 < PT < 14 (15) GeV/c of the J/psi (gamma) mesons. The J/psi and gamma production cross-sections and the fraction of J/psi mesons from b-hadron decays are measured as a function of the meson P-T and y. | |||
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