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Preprint/Report DESY-2013-00874
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Elastic and Proton-Dissociative Photoproduction of $J/\psi$ Mesons at HERA

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2013
Springer Berlin

The European physical journal / C 73(6), 2466 () [10.1140/epjc/s10052-013-2466-y]
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Report No.: DESY-13-058; arXiv:1304.5162

Abstract: Cross sections for elastic and proton-dissociative photoproduction of J/ψ mesons are measured with the H1 detector in positron-proton collisions at HERA. The data were collected at ep centre-of-mass energies s√≈318 GeV and s√≈225 GeV , corresponding to integrated luminosities of L=130 pb−1 and L=10.8 pb−1 , respectively. The cross sections are measured as a function of the photon-proton centre-of-mass energy in the range 25<W γp <110 GeV. Differential cross sections dσ/dt, where t is the squared four-momentum transfer at the proton vertex, are measured in the range |t|<1.2 GeV2 for the elastic process and |t|<8 GeV2 for proton dissociation. The results are compared to other measurements. The W γp and t-dependences are parametrised using phenomenological fits.

Classification:
Contributing Institute(s):
  1. H1 Experiment (H1(-2012))
Research Program(s):
  1. Experiments at HERA (H1) (POF2-511) (POF2-511)
Experiment(s):
  1. HERA: H1

Appears in the scientific report 2013
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Creative Commons Attribution CC BY 4.0 ; OpenAccess ; NationallizenzNationallizenz
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 Record created 2013-10-02, last modified 2025-08-03
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