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arxiv: 0711.4863 · v2 · submitted 2007-11-30 · ✦ hep-th · hep-ph

Periods and Feynman integrals

Christian Bogner , Stefan Weinzierl This is my paper
classification ✦ hep-th hep-ph
keywords integralslaurentperiodsseriescasecoefficientsconsidercorresponding
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We consider multi-loop integrals in dimensional regularisation and the corresponding Laurent series. We study the integral in the Euclidean region and where all ratios of invariants and masses have rational values. We prove that in this case all coefficients of the Laurent series are periods.

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