Analysis of the internal structure of hadrons using direct photon production

TL;DR

This paper explores how direct photon production can be used to probe the internal structure of hadrons, combining advanced theoretical calculations with experimental data to improve understanding.

Contribution

It introduces a method to analyze hadron structure using photon production, incorporating NLO QCD and LO QED corrections with current PDFs and FFs.

Findings

Photon production provides insights into hadron internal structure

Inclusion of NLO QCD and LO QED corrections improves theoretical predictions

Method enhances the interpretation of collider experiments

Abstract

Achieving a precise description of the internal structure of hadrons is a hard task, since there are several bottlenecks to obtain theoretical predictions starting from first principles. In order to complement the highly-accurate experiments, it is necessary to use ingenious strategies to impose constraints from the theory side. In this article, we describe how photons can be used to unveil the internal structure of hadrons. Using up-to-date PDFs and FFs, we explore how to describe NLO QCD plus LO QED corrections to hadron plus photon production at colliders.