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Functional reduction of Feynman integrals
2019
Journal of High Energy Physics
A method for reducing Feynman integrals, depending on several kinematic variables and masses, to a combination of integrals with fewer variables is proposed. The method is based on iterative application of functional equations proposed by the author. The reduction of the one-loop scalar triangle and box integrals with massless internal propagators to simpler integrals is described in detail. The triangle integral depending on three variables is represented as a sum over three integrals
doi:10.1007/jhep02(2019)173
fatcat:m4r5laostbgkhhth3cuafg2xau