Interpreting virtual photon interactions in terms of parton distribution functions
Jiri Chyla, Marek Tasevsky
TL;DR
This paper explores how virtual photon interactions can be understood using parton distribution functions, emphasizing their usefulness even at high virtualities and examining the role of longitudinal photons in jet cross-section analysis at HERA.
Contribution
It demonstrates the applicability of parton distribution functions to highly virtual photons and investigates the significance of longitudinal photons in jet measurements.
Findings
Parton distribution functions are useful for highly virtual photons.
Longitudinal photons significantly affect jet cross-section interpretations.
Photon structure analysis aids understanding of virtual photon interactions.
Abstract
Interactions of virtual photons are analyzed in terms of photon structure. It is argued that the concept of parton distribution functions is phenomenologically very useful even for highly virtual photons involved in hard collisions. The role of longitudinal photons for proper interpretation of jet cross--sections in the region of moderate virtualities accessible at HERA is investigated.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Particle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions