Geometric approach to asymptotic expansion of Feynman integrals
Geometric approach to asymptotic expansion of Feynman integrals
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DOI:
10.1140/epjc/s10052-011-1626-1
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发表时间:
2010-11
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影响因子:
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通讯作者:
A. Pak;A. Smirnov
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文献类型:
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作者:
A. Pak;A. Smirnov
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.