# Probing QCD at the Highest $Q^2$ Deep Inelastic Scattering

## TL;DR

This paper reviews recent high-$Q^2$ deep inelastic scattering results from HERA, providing insights into proton structure, constraining parton distribution functions, and measuring the strong coupling constant at high energies.

## Contribution

It presents new measurements of proton structure functions, $ ext{PDF}$ constraints, and $ ext{α}_S$ determinations at high energy scales, advancing understanding of QCD.

## Key findings

- Proton PDFs are constrained at high $Q^2$.
- Strong coupling $ ext{α}_S$ measured at high energies.
- Jet substructure analyzed at high $Q^2$.

## Abstract

Recent results from the HERA ep collider are reviewed in these proceedings. The results are from measurements that probe QCD at high-energy scales, as defined by $Q^2$, the four-momentum-transfer squared of the collisions. These cross-section measurements provide information about the parton distribution functions (PDFs) of the proton and can be used to constrain global fits of these PDFs. Recent measurements of the strong coupling $\alpha_S$ and jet substructure from HERA at similar energy scales are also reviewed.