Matching of Singly- and Doubly-Unresolved Limits of Tree-level QCD Squared Matrix Elements
arXiv:hep-ph/0502226 · doi:10.1088/1126-6708/2005/06/024
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.
53 pages, no figures, journal version, 1 reference added, minor corrections