Diffractive Photon Production in Gamma-P and Gamma-Gamma Interactions

Abstract

We study the diffractive production of photons in gamma-p and gamma-gamma collisions. We specifically compute the rates for gamma*-p -> gamma-X and for gamma*-gamma* -> gamma-gamma, where X denotes the proton dissociation. We focus on the rates at large momentum transfers, -t >> Lambda^2, where we are most confident in the use of QCD perturbation theory. However, our calculations do allow us to study the -t -> 0 behaviour of the gamma*-gamma*-> gamma-gamma process in the region where the incoming photons are sufficiently virtual.

17 pages, 4 figures

References in corpus (4)

• A QCD analysis of HERA and fixed target structure function data
• Polarization in diffractive electroproduction of light vector mesons
• Hard diffractive Photon-Proton Scattering at large t
• Double Diffraction Dissociation at High t

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• Measurement of Diffractive Scattering of Photons with Large Momentum Transfer at HERA
• A Study of the Gluon Ladder in Diffractive Processes
• Diffractive production of high pt photons at HERA
• Diffractive Higgs boson photoproduction in $\gamma p$ process
• Measurement of Diffractive Scattering of Photons with Large Momentum Transfer at HERA
• Diffractive photon production at high momentum transfer in $ep$ collisions
• Diffractive Higgs boson photoproduction in peripheral collisions