The Correlated Spatial Structure of the Proton: Two-body densities as a framework for dynamical imaging

TL;DR

This paper introduces a framework using two-parton densities in coordinate space to better understand the proton's internal structure, linking spatial correlations of quarks and gluons to observable quantities in QCD.

Contribution

It presents a novel approach to analyze the proton's internal structure through two-body densities, providing a more detailed dynamical imaging method.

Findings

Two-parton densities capture transverse spatial correlations.

Connection established between densities and double generalized parton distributions.

Framework enhances understanding of proton's internal dynamics.

Abstract

We present results on two-parton densities in coordinate space, which capture a fuller dynamical picture of the proton's internal structure, including information on the relative position between quarks and gluons in the transverse plane. The connection of such two body densities to observables proceeds in QCD via the definition of double generalized parton distributions.