1.5k citations · 5.7k across the 42 of their papers we have counts for
44 papers
Landau and cluster structures of one-loop amplitudes in SYM in dimensional regularization
Athanasia-Konstantina Angelopoulou, Ruth Britto, Matteo Parisi
Generalized unitarity, Landau analysis, and cluster adjacency encode complementary aspects of scattering amplitudes. We use one-loop planar SYM amplitudes in dimensi…
Resonance and Differential Reduction of Feynman Integrals
Ruth Britto, Thomas W. Grimm, Arno Hoefnagels
Feynman integrals may be viewed as generalized hypergeometric functions, and specifically as solutions of GKZ systems of partial differential equations that typically exhibit reson…
Generalized Cuts of Feynman Integrals in Parameter Space
Ruth Britto
We propose a construction of generalized cuts of Feynman integrals as an operation on the domain of the Feynman parametric integral. A set of on-shell conditions removes the corres…
The Diagrammatic Coaction
Samuel Abreu, Ruth Britto, Claude Duhr +2
The diagrammatic coaction underpins the analytic structure of Feynman integrals, their cuts and the differential equations they admit. The coaction maps any diagram into a tensor p…
The SAGEX Review on Scattering Amplitudes, Chapter 3: Mathematical structures in Feynman integrals
Samuel Abreu, Ruth Britto, Claude Duhr
Dimensionally-regulated Feynman integrals are a cornerstone of all perturbative computations in quantum field theory. They are known to exhibit a rich mathematical structure, which…
The SAGEX Review on Scattering Amplitudes
Gabriele Travaglini, Andreas Brandhuber, Patrick Dorey +35
This is an introduction to, and invitation to read, a series of review articles on scattering amplitudes in gauge theory, gravity, and superstring theory. Our aim is to provide an…