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arXiv · hep-ph/0505038

Asymptotics of Feynman Diagrams and The Mellin-Barnes Representation

Samuel Friot·David Greynat·Eduardo de Rafael
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Abstract

It is shown that the integral representation of Feynman diagrams in terms of the traditional Feynman parameters, when combined with properties of the Mellin--Barnes representation and the so called {\it converse mapping theorem}, provide a very simple and efficient way to obtain the analytic asymptotic behaviours in both the large and small ratios of mass scales.

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Samuel Friot, David Greynat, Eduardo de Rafael. 2005-08-25. Asymptotics of Feynman Diagrams and The Mellin-Barnes Representation. https://doi.org/10.1016/j.physletb.2005.08.126

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