High-pT photon processes and the photon structure - results from HERA jet and prompt photon (photo)production
Thomas Schoerner-Sadenius (Hamburg University) (for the H1, ZEUS, Collaborations)
TL;DR
This paper reviews experimental results from HERA on jet and prompt photon production, highlighting insights into photon structure, parton distribution functions, and underlying event dynamics in high-energy ep collisions.
Contribution
It presents new measurements of jet and prompt photon production at HERA, exploring photon structure and multi-parton interactions with improved precision.
Findings
Resolved photon interactions significantly influence jet cross sections
Prompt photon production data constrain photon and proton PDFs
Multi-parton interactions affect the underlying event characteristics
Abstract
Many important QCD tests with jets and prompt photons have been performed with the experiments H1 and ZEUS at the HERA ep collider. This contribution focuses on results from jet and prompt photon photoproduction. In particular, the concept of resolved photon interactions and various jet cross sections and their sensitivity to the photon (and proton) PDFs will be discussed. In addition, recent results from prompt photon production will be shown. Finally results on multi-parton interactions and the underlying event will be presented.
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