NNLL resummation for QCD cross sections

Abstract

I present results for the resummation of soft-gluon contributions to QCD hard-scattering cross sections at next-to-next-to-leading logarithm accuracy. A key ingredient is the calculation of two-loop soft anomalous dimensions for the partonic processes. Explicit expressions and applications are provided for processes that involve massless partons and/or massive quarks.

Comments: 4 pages; presented at ICHEP 2010, Paris, France, July 22-28, 2010