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arXiv · hep-ph/0109144

Photoproduction of Heavy Quarkonia

B. Jaeger·W. Schweiger
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Abstract

We investigate the reaction gamma+p -> V+p, with V denoting a Phi or a J/Psi meson, within the scope of perturbative QCD, treating the proton as a quark-diquark system. Our predictions extrapolate the existing forward differential cross-section data into the few-GeV momentum-transfer region. In case of the J/Psi reasonable results are only obtained by properly taking into account its mass in the perturbative calculation of the hard-scattering amplitude.

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B. Jaeger, W. Schweiger. 2001-09-17. Photoproduction of Heavy Quarkonia. https://doi.org/10.1063/1.1436635

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