Dissecting polytopes: Landau singularities and asymptotic expansions in 2 → 2 scattering
(2024)
Journal Article
Gardi, E., Herzog, F., Jones, S., & Ma, Y. (2024). Dissecting polytopes: Landau singularities and asymptotic expansions in 2 → 2 scattering. Journal of High Energy Physics, 2024(8), Article 127. https://doi.org/10.1007/jhep08%282024%29127
Parametric representations of Feynman integrals have a key property: many, frequently all, of the Landau singularities appear as endpoint divergences. This leads to a geometric interpretation of the singularities as faces of Newton polytopes, which f... Read More about Dissecting polytopes: Landau singularities and asymptotic expansions in 2 → 2 scattering.