arXiv:0807.0698·v1·High Energy Physics — Phenomenology
Anomalous Threshold as the Pivot of Feynman Amplitudes
S. Goria🇮🇹 · G. Passarino🇮🇹
Abstract
Reduction techniques, Landau singularities and differential equations for Feynman amplitudes are briefly reviewed.
Comments: Contribution to the Proceedings of the 9th DESY workshop on "Loops and Legs in Quantum Field Theory", Sondershausen, April 2008. 6 pages latex,