Two-Loop Vertices in Quantum Field Theory: Infrared Convergent Scalar Configurations

@article{Ferroglia2004TwoLoopVI,
  title={Two-Loop Vertices in Quantum Field Theory: Infrared Convergent Scalar Configurations},
  author={Andrea Ferroglia and Giampiero Passarino and Massimo Passera and Sandro Uccirati},
  journal={Nuclear Physics},
  year={2004},
  volume={680},
  pages={199-270}
}
Abstract A comprehensive study is performed of general massive, scalar, two-loop Feynman diagrams with three external legs. Algorithms for their numerical evaluation are introduced and discussed, numerical results are shown for all different topologies and comparisons with analytical results, whenever available, are performed. An internal cross-check, based on alternative procedures, is also applied. The analysis of infrared divergent configurations, as well as the treatment of tensor integrals… Expand
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