QCD Corrections to Inelastic $J/ψ$ Photoproduction

Details QCD Corrections to Inelastic $J/ψ$ Photoproduction QCD Corrections to Inelastic $J/ψ$ Photoproduction

1995-08-31

arxiv.org/abs/hep-ph/9508409v1

Nucl.Phys.B459:3-50,1996

Physics

High Energy Physics

High Energy Physics - Phenomenology

42 pages, Latex, 24 figures appended as uuencoded file, uses epsfig, complete postscript file at ftp://x4u2.desy.de/pub/prep

Scientific paper

10.1016/0550-3213(95)00568-4

We present a complete calculation of the higher-order perturbative QCD corrections to inelastic photoproduction of $J/\psi$ particles. A comprehensive analysis of total cross sections and differential distributions for the energy range of the fixed-target experiments and for inelastic $J/\psi$ photoproduction at HERA is performed. The cross section and the $J/\psi$ energy spectrum are compared with the available photoproduction data including first results from HERA. This analysis will not only provide information on the gluon distribution of the proton but appears to be a clean test for the underlying picture of quarkonium production as developed so far in the perturbative QCD sector.

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