The proton structure via double parton scattering

TL;DR

This paper investigates double parton distribution functions (dPDFs) in high-energy proton collisions, exploring their role in revealing the three-dimensional partonic structure of protons through theoretical calculations and phenomenological analysis.

Contribution

It introduces new calculations of dPDFs including correlations and discusses their potential observability in upcoming LHC experiments.

Findings

Double correlations significantly affect experimental observables.

dPDFs provide insight into the transverse structure of protons.

Potential to explore 3D proton structure in future experiments.

Abstract

In this talk we present the results of the investigation on the so called double parton distribution functions (dPDFs), accessible quantities in high energy proton-proton and proton nucleus collisions, in double parton scattering processes (DPS). These new and almost unknown distributions encode information on how partons inside a proton are correlated among each other and represent a new tool to explore the three dimensional partonic structure of hadrons. In the present contribution, results of the calculations of dPFDs are presented also including phenomenological investigations on the impact of double correlations in experimental observables, showing how the latter could be observed in the next LHC run. In addition we discuss how present information on experimental observables could be related to the transverse proton structure.