A next-to-next-to-leading order calculation of soft-virtual cross sections
High Energy Physics - Phenomenology
2013-02-28 v2
Abstract
We compute the next-to-next-to-leading order (NNLO) soft and virtual QCD corrections for the partonic cross section of colourless-final state processes in hadronic collisions. The results are valid to all orders in the dimensional regularization parameter . The dependence of the results on a particular process is given through finite contributions to the one and two-loop amplitudes. To evaluate the accuracy of the soft-virtual approximation we compare it with the full NNLO result for Drell-Yan and Higgs boson production via gluon fusion. We also provide a universal expression for the hard coefficient needed to perform threshold resummation up to next-to-next-to-leading logarithmic (NNLL) accuracy.
Keywords
Cite
@article{arxiv.1209.0673,
title = {A next-to-next-to-leading order calculation of soft-virtual cross sections},
author = {Daniel de Florian and Javier Mazzitelli},
journal= {arXiv preprint arXiv:1209.0673},
year = {2013}
}
Comments
25 pages, 4 figures