Hard diffractive Photon-Proton Scattering at large t

Details Hard diffractive Photon-Proton Scattering at large t Hard diffractive Photon-Proton Scattering at large t

1998-08-28

arxiv.org/abs/hep-ph/9808455v1

Eur.Phys.J.C8:107-114,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, LaTex, 2 figures

Scientific paper

10.1007/s100529901049

We propose to test perturbative QCD in the Regge limit by means of diffractive photon scattering $\gamma p \to \gamma X$ at large $t$ and very high energies $W^2\gg |t|\gg \Lambda^2_{QCD}$. The helicity amplitudes of this process were calculated using the Lipatov solution of the BFKL equation for $t\neq 0$. We found that the perturbatively calculated cross section for this process exceeds the cross section for $J/\Psi$ photoproduction assuming similar kinematics.

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