English

Canonical differential equations beyond polylogs

High Energy Physics - Theory 2026-02-05 v1 High Energy Physics - Phenomenology

Abstract

Feynman integrals whose associated geometries extend beyond the Riemann sphere, such as elliptic curves and Calabi-Yau varieties, are increasingly relevant in modern precision calculations. They arise not only in collider cross-section calculations, but also in the post-Minkowskian expansion of gravitational-wave scattering. A powerful approach to compute integrals of this type is via differential equations, particularly when cast in a canonical form, which simplifies their ε\varepsilon-expansion and makes analytic properties manifest. In these proceedings, we will present a method to systematically construct canonical differential equations even for integrals that evaluate beyond multiple polylogarithms. The discussion is kept as light as possible, focusing on the two-loop sunrise integral, deferring the technical details to the original publications.

Keywords

Cite

@article{arxiv.2602.04371,
  title  = {Canonical differential equations beyond polylogs},
  author = {Claude Duhr and Sara Maggio and Christoph Nega and Benjamin Sauer and Lorenzo Tancredi and Fabian J. Wagner},
  journal= {arXiv preprint arXiv:2602.04371},
  year   = {2026}
}

Comments

RadCor 2025 proceedings

R2 v1 2026-07-01T09:35:38.792Z