Next-to-next-to-leading logarithmic threshold resummation for deep-inelastic scattering and the Drell-Yan process
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
The soft-gluon resummation exponents G^N in moment space are investigated for the quark coefficient functions in deep-inelastic structure functions and the quark-antiquark contribution to the Drell-Yan cross section dsigma/dM. Employing results from two- and three-loop calculations we obtain the next-to-next-to-leading logarithmic terms alpha_s (alpha_s ln N)^n of G^N to all orders in the strong coupling constant alpha_s. These new contributions facilitate a reliable assessment of the numerical effect and the stability of the large-N expansion.
Keywords
Cite
@article{arxiv.hep-ph/0010146,
title = {Next-to-next-to-leading logarithmic threshold resummation for deep-inelastic scattering and the Drell-Yan process},
author = {A. Vogt},
journal= {arXiv preprint arXiv:hep-ph/0010146},
year = {2009}
}
Comments
9 pages, LaTeX, 2 eps-figures