TL;DR
This paper develops NNLL resummation techniques for QCD cross sections, focusing on soft-gluon contributions, with explicit calculations of two-loop soft anomalous dimensions for various partonic processes.
Contribution
It introduces the calculation of two-loop soft anomalous dimensions and applies NNLL resummation to processes involving massless and massive partons, advancing precision in QCD predictions.
Findings
Explicit two-loop soft anomalous dimensions derived.
Resummation improves accuracy of QCD cross section calculations.
Applications demonstrated for processes with massless and massive quarks.
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.
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