236 citations · 303 across the 6 of their papers we have counts for
13 papers
Traintracks All the Way Down
Andrew J. McLeod, Matt von Hippel
We study the class of planar Feynman integrals that can be constructed by sequentially intersecting traintrack diagrams without forming a closed traintrack loop. After describing h…
An Infinite Family of Elliptic Ladder Integrals
Andrew McLeod, Roger Morales, Matt von Hippel +2
We identify two families of ten-point Feynman diagrams that generalize the elliptic double box, and show that they can be expressed in terms of the same class of elliptic multiple…
A Symbol and Coaction for Higher-Loop Sunrise Integrals
Andreas Forum, Matt von Hippel
We construct a symbol and coaction for -loop sunrise integrals, both for the equal-mass and generic-mass cases. These constitute the first concrete examples of symbols and coact…
Landau Singularities and Higher-Order Roots
Jacob L. Bourjaily, Cristian Vergu, Matt von Hippel
Landau's work on the singularities of Feynman diagrams suggests that they can only be of three types: either poles, logarithmic divergences, or the roots of quadratic polynomials.…
NNNLO gravitational quadratic-in-spin interactions at the quartic order in G
Michèle Levi, Andrew J. McLeod, Matthew von Hippel
We compute the NLO gravitational quadratic-in-spin interactions at in the post-Newtonian (PN) expansion via the effective field theory (EFT) of gravitating spinning objec…
NLO gravitational spin-orbit coupling at order
Michèle Levi, Andrew J. McLeod, Matthew von Hippel
In this paper we derive for the first time the NLO gravitational spin-orbit coupling at order in the post-Newtonian (PN) approximation within the effective field theory (…