Prompt Photon Production in Polarized Hadron Collisions
Werner Vogelsang (RIKEN-BNL Research Center)
TL;DR
This paper investigates spin asymmetries in prompt photon production during polarized hadron collisions, emphasizing the importance for understanding gluon spin distribution and analyzing QCD correction effects like soft-gluon resummations.
Contribution
It introduces a detailed analysis of spin asymmetries in prompt photon production, including the impact of QCD corrections such as threshold resummations.
Findings
QCD corrections significantly affect spin asymmetry predictions
Prompt photon production is a promising probe for gluon polarization
Resummation effects improve theoretical accuracy
Abstract
We consider spin asymmetries for prompt photon production in collisions of longitudinally polarized hadrons. This reaction will be a key tool at the BNL-RHIC pp collider for determining the gluon spin density in a polarized proton. We study the effects of QCD corrections, such as all-order soft-gluon `threshold' resummations.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions