I present improved predictions for the total hadronic cross section of stop-antistop production at hadron colliders including next-to-next-to-leading-order threshold corrections and approximated Coulomb corrections. The results are based on soft corrections, which are logarithmically enhanced near threshold. I present analytic formulas for the NNLO scaling functions at threshold and explicit numbers for the total hadronic cross sections for the Tevatron and the LHC. Finally I discuss the systematic error, the scale uncertainty and the PDF error of the hadronic cross section.
@article{arxiv.1011.3341,
title = {Threshold Improved QCD Corrections for Stop-Antistop production at Hadron colliders},
author = {Ulrich Langenfeld},
journal= {arXiv preprint arXiv:1011.3341},
year = {2011}
}