Tropical Feynman integration in the physical region

Abstract

The software feyntrop for direct numerical evaluation of Feynman integrals is presented. We focus on the underlying combinatorics and polytopal geometries facilitating these methods. Especially matroids, generalized permutohedra and normality are discussed in detail.

arXiv comment9 pages, 3 figures, EPS-HEP 2023 proceedings

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