Measurement of J/ψ photoproduction at large momentum transfer at HERA

Measurement of J/ψ photoproduction at large momentum transfer at HERA

The proton-dissociative diffractive photoproduction of J/ψ mesons has been studied in ep collisions with the ZEUS detector at HERA using an integrated luminosity of 112 pb-1. The cross section is presented as a function of the photon-proton centre-ofmass energy and of the squared four-momentum trans...

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Détails bibliographiques
Auteurs principaux: Chekanov, S, Derrick, M, Magill, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Antonioli, P, Bari, G, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cindolo, F, Corradi, M, Iacobucci, G, Margotti, A, Nania, R, Polini, A, Antonelli, S, Basile, M, Bindi, M, Cifarelli, L, Contin, A, De Pasquale, S
Format: Journal article
Langue:English
Publié: 2010
Description
Résumé:The proton-dissociative diffractive photoproduction of J/ψ mesons has been studied in ep collisions with the ZEUS detector at HERA using an integrated luminosity of 112 pb-1. The cross section is presented as a function of the photon-proton centre-ofmass energy and of the squared four-momentum transfer at the proton vertex. The results are compared to perturbative QCD calculations.

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