Infrared singularities in one-loop amplitudes
arXiv:1006.4609 · doi:10.1016/j.nuclphysbps.2010.08.047
Abstract
In this talk we discuss a purely numerical approach to next-to-leading order calculations in QCD. We present a simple formula, which provides a local infrared subtraction term for the integrand of a one-loop amplitude. In addition we briefly comment on local ultraviolet subtraction terms and on the required deformation of the contour of integration.
6 pages, talk given at the conference "Loops and Legs", Woerlitz, 2010