Analytic integration of real-virtual counterterms in NNLO jet cross sections II
High Energy Physics - Phenomenology
2009-09-28 v1
Abstract
We present analytic expressions of all integrals required to complete the explicit evaluation of the real-virtual integrated counterterms needed to define a recently proposed subtraction scheme for jet cross sections at next-to-next-to-leading order in QCD. We use the Mellin-Barnes representation of these integrals in dimensions to obtain the coefficients of their Laurent expansions around . These coefficients are given by linear combinations of multidimensional Mellin-Barnes integrals. We compute the coefficients of such expansions in both numerically and analytically by complex integration over the Mellin-Barnes contours.
Keywords
Cite
@article{arxiv.0905.4390,
title = {Analytic integration of real-virtual counterterms in NNLO jet cross sections II},
author = {P. Bolzoni and S. Moch and G. Somogyi and Z. Trocsanyi},
journal= {arXiv preprint arXiv:0905.4390},
year = {2009}
}
Comments
27 pages, 6 figures