Infrared divergences and non-lightlike eikonal lines in Sudakov processes
High Energy Physics - Phenomenology
2009-10-31 v2
Abstract
We propose a method to analyze infrared contributions to non-inclusive processes in QCD. We use the one-loop Sudakov form factor as a working example. Borrowing techniques from renormalization theory, we construct counterterms for the contributions from the soft and collinear regions, and we relate them to eikonal Wilson lines taken along non-lightlike directions.
Keywords
Cite
@article{arxiv.hep-ph/9908467,
title = {Infrared divergences and non-lightlike eikonal lines in Sudakov processes},
author = {J. C. Collins and F. Hautmann},
journal= {arXiv preprint arXiv:hep-ph/9908467},
year = {2009}
}
Comments
Latex, 1 postscript figure. Version 2: presentation improved and typos corrected, results unchanged