• Corpus ID: 250644076

Two-Loop Infrared Renormalization with On-shell Methods

  title={Two-Loop Infrared Renormalization with On-shell Methods},
  author={Pietro Baratella},
Within the framework proposed by Caron-Huot and Wilhelm, we give a recipe for computing infrared anomalous dimensions purely on-shell, efficiently up to two loops in any massless theory. After introducing the general formalism and reviewing the one-loop recipe, we extract a practical formula that relates two-loop infrared anomalous dimensions to certain two- and three-particle phase space integrals with tree-level form factors of conserved operators. We finally provide several examples of the use… 

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