Sudakov Resummation Effects in Prompt-Photon Hadroproduction
High Energy Physics - Phenomenology
2010-02-03 v1
Abstract
We compute the effects of soft-gluon resummation, at the next-to-leading-logarithmic level, in the fixed-target hadroproduction cross section for prompt photons. We find in general that the corrections to the fixed next-to-leading-order results are large for large renormalization scales, and small for small scales. This leads to a significant reduction of the scale dependence of the results for most experimental configurations of interest. We compare our results to the recent measurements by the E706 and UA6 collaborations.
Keywords
Cite
@article{arxiv.hep-ph/9903436,
title = {Sudakov Resummation Effects in Prompt-Photon Hadroproduction},
author = {S. Catani and M. L. Mangano and P. Nason and C. Oleari and W. Vogelsang},
journal= {arXiv preprint arXiv:hep-ph/9903436},
year = {2010}
}
Comments
30 pages, Latex, epsfig, amssymb, 17 figures. Submitted to JHEP