TL;DR
This paper summarizes recent HERMES measurements of Deeply-Virtual Compton Scattering, highlighting their implications for understanding nucleon structure and quark orbital angular momentum through comparison with theoretical models.
Contribution
It provides new experimental data on DVCS from HERMES and compares these results with models to enhance understanding of generalized parton distributions.
Findings
Measurements support models of nucleon structure
Data suggest insights into quark orbital angular momentum
Results include heavy nuclei DVCS measurements
Abstract
Hard exclusive reactions are the tool to learn about generalized parton distributions, which provide a more complete parametrization of the nucleon than the ordinary parton distribution functions. Recent measurements by the HERMES collaboration of the exclusive production of photons, i.e., Deeply-Virtual Compton Scattering, are summarized and compared to model calculations, focusing on the measurements and model comparisons relevant to the extraction of quark orbital angular momentum and on the measurements on heavy nuclei.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions