
Polarized double photon production in QCD to order {alpha}{sub s}
Author(s) -
Claudio Corianò,
L. E. Gordon
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/206970
Subject(s) - physics , parton , quantum chromodynamics , particle physics , photon , order (exchange) , production (economics) , photon structure function , nuclear physics , quantum mechanics , finance , economics , macroeconomics
We present a complete order {alpha}{sub s} analysis of the process pp {r_arrow}{gamma}{gamma} + X with polarized initial states, previously studied by us with leading order structure functions. We include in our calculation new sets of parton densities evolved in NLO QCD, such as those of Gehrmann and Stirling and of Glueck et al., which incorporate the new anomalous dimensions of Mertig and Van Neerven in the evolution equation. A detailed phenomenological analysis is also given which includes the photon isolation. Our results indicate that the asymmetries, although not very large, should be substantial enough at RHIC energies to be measurable in future planned experiments