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.

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.