Exclusive photoproduction of a γ\, pair with a large invariant mass
Abstract
Exclusive photoproduction of a γ\, pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework. The scattering amplitude is calculated at leading order in αs and the differential cross sections for the process where the -meson is either longitudinally or transversely polarized are estimated in the kinematics of the JLab 12-GeV experiments.
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