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GPDs from DVCS at L0 and beyond

Deeply-virtual Compton scattering (DVCS) is considered the ''most clean'' process for deriving informations about generalized parton distributions (GPDs). The analyisis of DVCS at leading- and higher-orders in the strong coupling constant is presented, and the advantages of the conformal momentum approach and making use of the Mellin-Barnes representation are elaborated. The extension of such a research to other processes, e.g., timelike DVCS and deeply virtual electroproduction of mesons, is possible and would provide complementary informations on GPDs.

generalized parton distributions; leading order; next-to-leading order; deeply virtual Compton scattering

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