Asymptotics of Feynman Diagrams and The Mellin-Barnes Representation

Details Asymptotics of Feynman Diagrams and The Mellin-Barnes Representation Asymptotics of Feynman Diagrams and The Mellin-Barnes Representation

2005-05-05

arxiv.org/abs/hep-ph/0505038v3

Phys.Lett. B628 (2005) 73-84

Physics

High Energy Physics

High Energy Physics - Phenomenology

References added. This is the version published in Physics Letters B

Scientific paper

10.1016/j.physletb.2005.08.126

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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