Anomalous Threshold as the Pivot of Feynman Amplitudes
S. Goria, G. Passarino
TL;DR
This paper reviews reduction techniques, Landau singularities, and differential equations related to Feynman amplitudes, highlighting their roles in understanding quantum field theory calculations.
Contribution
It provides a concise overview of key mathematical tools and concepts used in analyzing Feynman amplitudes, emphasizing the anomalous threshold as a central element.
Findings
Clarifies the role of Landau singularities in Feynman integrals
Highlights the importance of anomalous thresholds in amplitude analysis
Summarizes differential equation methods for Feynman integrals
Abstract
Reduction techniques, Landau singularities and differential equations for Feynman amplitudes are briefly reviewed.
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