Next-to-next-to-leading-order soft-gluon corrections in direct photon production
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
Previous work on soft-gluon resummation for direct photon production is extended to include additional subleading logarithmic terms through O(alpha alpha_s^3) and some representative comparisons are made to experimental results from the E-706 and UA-6 Collaborations. The additional terms are small in magnitude, indicating good convergence properties to the level of accuracy calculated. The scale dependence remains much smaller than that of the next-to-leading-order calculation.
Keywords
Cite
@article{arxiv.hep-ph/0307352,
title = {Next-to-next-to-leading-order soft-gluon corrections in direct photon production},
author = {Nikolaos Kidonakis and J. F. Owens},
journal= {arXiv preprint arXiv:hep-ph/0307352},
year = {2009}
}
Comments
10 pages, 4 figures