Measurement of J/psi photoproduction at large momentum transfer at HERA - INSPIRE

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

ZEUS

Collaboration

Sep, 2009

38 pages

Published in:

JHEP 05 (2010) 085

e-Print:

0910.1235 [hep-ex]

DOI:

10.1007/JHEP05(2010)085

Report number:

DESY-09-137

Experiments:

DESY-HERA-ZEUS

View in:

ADS Abstract Service

reference search35 citations

Citations per year

Abstract: (arXiv)

The proton-dissociative diffractive photoproduction of J/psi 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-of-mass energy and of the squared four-momentum transfer at the proton vertex. The results are compared to perturbative QCD calculations.

Note:

38 pages, 11 figures. In figures 6,9 and 11 added H1 measurement. Added comment on background contribution in subsection Evaluation of background

Lepton-Nucleon Scattering
J/psi(3100): photoproduction
quantum chromodynamics: perturbation theory
electron p: interaction
DESY HERA Stor
momentum transfer: high
diffraction: dissociation
ZEUS
differential cross section: momentum transfer dependence
energy dependence

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