Geometric approach to asymptotic expansion of Feynman integrals

Published 22 Nov 2010 in hep-ph and hep-th | (1011.4863v1)

Abstract: We present an algorithm that reveals relevant contributions in non-threshold-type asymptotic expansion of Feynman integrals about a small parameter. It is shown that the problem reduces to finding a convex hull of a set of points in a multidimensional vector space.

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