# Nucleon 3D structure from double parton scattering: a Light-Front quark model analysis

## TL;DR

This paper investigates the three-dimensional structure of the proton using double parton distribution functions within a Light-Front quark model, analyzing correlations and QCD evolution to compare with future experimental data.

## Contribution

It introduces a Light-Front quark model analysis of dPDFs without additional assumptions, providing predictions for double parton scattering observables.

## Key findings

- Model predicts parton correlations in the valence region.
- QCD evolution of dPDFs aligns with expected high-energy behavior.
- Results on ff provide insights into double parton scattering.

## Abstract

Double parton distribution functions (dPDFs) represent a tool to explore the 3D partonic structure of the proton. They can be measured in high energy proton-proton and proton nucleus collisions and encode information on how partons inside a proton are correlated among each other. dPFDs are studied here in the valence region by means of a constituent quark model scenario within the relativistic Light Front approach, where two particle correlations are present without any additional prescription. Furthermore, a study of the QCD evolution at high energy scale, of the model results, has been completed in order to compare our predictions with future data analyses. In closing, results on the evaluation of the so called \sigma_{eff} , crucial ingredient for the description of double parton scattering, where dPDFs can be accessed, are presented and discussed.