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Reduction of Feynman Integrals in the Parametric Representation IV: Integrals with Irregular Integration Regions (2508.18419v1)
Published 25 Aug 2025 in hep-ph, hep-th, math-ph, and math.MP
Abstract: Parametric Feynman integrals with the regions of integration defined by some polynomials are considered in this paper. It is shown that integrals with irregular integration regions can be converted to standard parametric integrals, for which a reduction method is known. An application of this method to the analytic calculation of three-point energy correlators is presented. In principle, this method applies to more general event shapes and even jet observables.
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