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 twoloop soft anomalous dimensions for the partonic processes. Explicit expressions and applications are provided for processes that involve massless partons and/or massive quarks.
Kidonakis, Nikolaos, "NNLL Resummation for QCD Cross Sections" (2010). Faculty Publications. 3871.