Hard diffractive Photon-Proton Scattering at large t
D. Yu. Ivanov, M. Wusthoff
Abstract
We propose to test perturbative QCD in the Regge limit by means of diffractive photon scattering γp γX at large t and very high energies W2 |t| Λ2QCD. The helicity amplitudes of this process were calculated using the Lipatov solution of the BFKL equation for t≠ 0. We found that the perturbatively calculated cross section for this process exceeds the cross section for J/Ψ photoproduction assuming similar kinematics.
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