Accessing Generalized Parton Distributions in Exclusive Photoproduction of a $\gamma \rho$ Pair with a Large Invariant Mass

Abstract

We propose and study the photoproduction of a $\gamma \rho$ pair with a large invariant mass and a small transverse momentum of the final nucleon, as a way to access generalized parton distributions. In the kinematics of JLab 12-GeV, we demonstrate the feasibility of this measurement.

4 pages, 4 figures, proceedings of "Diffraction 2016", International Workshop on Diffraction in High-Energy Physics, Acireale (Catania, Sicily), Sept. 2-8, 2016; to be published in the conference proceedings by AIP. arXiv admin note: substantial text overlap with arXiv:1609.05144

References in corpus (3)

• NLO corrections to timelike, spacelike and double deeply virtual Compton scattering
• Novel two-to-three hard hadronic processes and possible studies of generalized parton distributions at hadron facilities
• Exploring QCD dynamics in medium energy $\gamma A$ semiexclusive collisions

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• Probing axial quark generalized parton distributions through exclusive photoproduction of a $\gamma {\pi }^{\pm }$ pair with a large invariant mass
• Towards Unpolarized GPDs from Pseudo-Distributions
• Accessing chiral-even quark generalised parton distributions in the exclusive photoproduction of a $\gamma {\pi }^{\pm }$ pair with large invariant mass in both fixed-target and collider experiments
• NLO corrections to the deeply virtual meson production revisited: impact on the extraction of generalized parton distributions