Steps towards NNLO QCD calculations: collinear factorization at O(\alpha_S^2)
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
I consider the singular behaviour of tree-level QCD amplitudes when the momenta of three partons become simultaneously parallel and I discuss the universal factorization formula that controls the singularities of the multiparton matrix elements in this collinear limit.
Keywords
Cite
@article{arxiv.hep-ph/9905385,
title = {Steps towards NNLO QCD calculations: collinear factorization at O(\alpha_S^2)},
author = {M. Grazzini},
journal= {arXiv preprint arXiv:hep-ph/9905385},
year = {2009}
}
Comments
3 pages, 1 eps figure, talk given at the DIS99 Workshop, Zeuthen, Germany, April 19-23, 1999