Loop Integrals, R Functions and their Analytic Continuation

Details Loop Integrals, R Functions and their Analytic Continuation Loop Integrals, R Functions and their Analytic Continuation

1993-07-08

arxiv.org/abs/hep-th/9307055v1

Mod. Phys. Lett. A9 (1994) 2335-2346

Physics

High Energy Physics

High Energy Physics - Theory

10 pages (Latex), MZ-TH/93-11

Scientific paper

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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