Renormalization group evolution of collinear and infrared divergences

Abstract

I discuss collinear and infrared divergences in QCD cross sections with massless and massive final-state particles. I present the two-loop renormalization group evolution and resummation in terms of anomalous dimensions, and I show specific results for a variety of QCD hard-scattering processes.

Comments: 5 pages, 1 figure; presented at XIX International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS 2011), Newport News, Virginia, USA, April 11-15, 2011