Deconvoluting GPD from an explicit DVCS amplitude

TL;DR

This paper introduces a method to deconvolute generalized parton distributions (GPDs) from deeply virtual Compton scattering (DVCS) amplitudes by assuming factorization and solving the integral beyond the cross-over line, using explicit models.

Contribution

It develops a novel approach to extract GPDs from DVCS amplitudes beyond the cross-over line, advancing the analysis of scattering data.

Findings

Successfully solved the deconvolution integral for GPDs using explicit DVCS models.

Provided a practical method for extracting GPDs beyond the cross-over line.

Demonstrated the approach with concrete examples of DVCS amplitudes.

Abstract

By assuming factorization of the GPD under the deconvolution integral for the hand-bag diagram, we develop a method of solving this integral beyond the cross-over line. As examples we use explicit models of deeply virtual Compton scattering (DVCS) amplitudes to get solution for relevant GPDs.