Access to decoupled information on Generalized Parton Distributions (GPDs) via Double Deeply Virtual Compton Scattering (DDVCS)

TL;DR

This paper explores the potential of DDVCS experiments at JLab 12 GeV to independently access GPDs, using model predictions and a fitting algorithm to extract partonic structure information.

Contribution

It demonstrates the feasibility of measuring GPDs through DDVCS at JLab 12 GeV with model-based pseudo-data and a novel extraction method.

Findings

Feasibility of DDVCS experiments at JLab 12 GeV confirmed.

Model-predicted pseudo-data supports GPD extraction.

Fitter algorithm effectively retrieves GPD information.

Abstract

The Generalized Parton Distributions (GPDs) constitute an appropriate framework for a universal description of the partonic structure of the nucleon. Double Deeply Virtual Compton Scattering (DDVCS) process provides the only experimental way to measure independently the dependences of the GPDs on the average and transferred momentum. This proceeding discusses the feasibility of a DDVCS experiment in the context of JLab 12 GeV, model-predicted pseudo-data, and extraction of the relevant GPDs information based on a fitter algorithm.