Exclusive photoproduction at collider energies

The amplitude for photoproduction γp→Vp is calculated in a pQCD kt-factorization approach with an unintegrated gluon distribution by inclusive deep-inelastic structure function. The total cross for γp→Vp is compared to HERA data. We also discuss the 2S/1S ratio in difractive J/ψ production. The amplitude for γp→Vp is used to predict the cross section for exclusive photoproduction in pp collision at Tevatron energies. We included absorption effects. We also discuss the exclusive photoproduction of the electroweak Z0 boson.