Inelastic and Elastic Photoproduction ofJψ(3097)

Abstract

Inelastic and elastic $\frac{J}{\psi }$ photoproduction on hydrogen are investigated at a mean energy of 105 GeV. The inelastic cross section with $\frac{E_{\psi }}{E_{\gamma }}<0.9\mathrm{}$ is significantly lower than the corresponding result for muoproduction on iron targets, but is consistent with a second-order perturbative QCD calculation.