Multi-Loop Techniques for Massless Feynman Diagram Calculations
Journal Article
·
· Physics of Particles and Nuclei
- Sorbonne Université, CNRS, Laboratoire de Physique Théorique et Hautes Energies, LPTHE, Paris (France)
We review several multi-loop techniques for analytical massless Feynman diagram calculations in relativistic quantum field theories: integration by parts, the method of uniqueness, functional equations and the Gegenbauer polynomial technique. A brief, historically oriented, overview of some of the results obtained over the decades for the massless 2-loop propagator-type diagram is given. Concrete examples of up to 5-loop diagram calculations are also provided.
- OSTI ID:
- 22979633
- Journal Information:
- Physics of Particles and Nuclei, Journal Name: Physics of Particles and Nuclei Journal Issue: 1 Vol. 50; ISSN 1063-7796
- Country of Publication:
- United States
- Language:
- English
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