Mass effects and four-particle amplitudes at the two-loop level in QCD

Abstract

I review the recent progress in the evaluation of two-loop massive QCD amplitudes necessary for the description of hadronic scattering processes at the LHC. I put a special emphasis on the case of top-quark final states.

Comments: 6 pages, 2 figures, presented at the 8th International Symposium on Radiative Corrections, October 1-5, 2007, Florence, Italy