Top quark production at threshold with O(alpha_s^2) accuracy
High Energy Physics - Phenomenology
2009-10-31 v3
Abstract
We calculate the next-to-next-to-leading order correction to the cross section for top quark pair production in e+e- annihilation in the threshold region, resumming all O [ (alpha_s/beta)^n (alpha_s^2, beta^2, alpha_s beta) ] terms of perturbation series. We find that the magnitude of the NNLO correction is comparable to the size of the NLO corrections.
Keywords
Cite
@article{arxiv.hep-ph/9802379,
title = {Top quark production at threshold with O(alpha_s^2) accuracy},
author = {Kirill Melnikov and Alexander Yelkhovsky},
journal= {arXiv preprint arXiv:hep-ph/9802379},
year = {2009}
}
Comments
15 pages, Latex, one figure, some misprints corrected