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arXiv · hep-th/9307055

Loop Integrals, R Functions and their Analytic Continuation

L. Bruecher·J. Franzkowski·D. Kreimer
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Abstract

To entirely determine the resulting functions of one-loop integrals it is necessary to find the correct analytic continuation to all relevant kinematical regions. We argue that this continuation procedure may be performed in a general and mathematical accurate way by using the ${\cal R}$ function notation of these integrals. The two- and three-point cases are discussed explicitly in this manner.

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L. Bruecher, J. Franzkowski, D. Kreimer. 1993-07-08. Loop Integrals, R Functions and their Analytic Continuation. https://doi.org/10.1142/s0217732394002203

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