English

An algorithmic approach to finding canonical differential equations for elliptic Feynman integrals

High Energy Physics - Phenomenology 2023-08-28 v2 High Energy Physics - Theory Mathematical Physics math.MP

Abstract

In recent years, differential equations have become the method of choice to compute multi-loop Feynman integrals. Whenever they can be cast into canonical form, their solution in terms of special functions is straightforward. Recently, progress has been made in understanding the precise canonical form for Feynman integrals involving elliptic polylogarithms. In this article, we make use of an algorithmic approach that proves powerful to find canonical forms for these cases. To illustrate the method, we reproduce several known canonical forms from the literature and present examples where a canonical form is deduced for the first time. Together with this article, we also release an update for INITIAL, a publicly available Mathematica implementation of the algorithm.

Keywords

Cite

@article{arxiv.2211.16357,
  title  = {An algorithmic approach to finding canonical differential equations for elliptic Feynman integrals},
  author = {Christoph Dlapa and Johannes M. Henn and Fabian J. Wagner},
  journal= {arXiv preprint arXiv:2211.16357},
  year   = {2023}
}

Comments

21 pages, 5 figures. v2: minor text changes in section 2.2, matches the published version

R2 v1 2026-06-28T07:16:57.239Z