Matching of Singly- and Doubly-Unresolved Limits of Tree-level QCD Squared Matrix Elements
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
We describe how to disentangle the singly- and doubly-unresolved (soft and/or collinear) limits of tree-level QCD squared matrix elements. Using the factorization formulae presented in this paper, we outline a viable general subtraction scheme for computing next-to-next-to-leading order corrections for electron-positron annihilation into jets.
Cite
@article{arxiv.hep-ph/0502226,
title = {Matching of Singly- and Doubly-Unresolved Limits of Tree-level QCD Squared Matrix Elements},
author = {Gábor Somogyi and Zoltán Trócsányi and Vittorio Del Duca},
journal= {arXiv preprint arXiv:hep-ph/0502226},
year = {2009}
}
Comments
53 pages, no figures, journal version, 1 reference added, minor corrections