177 citations · 1.5k across the 32 of their papers we have counts for
34 papers
Symbol Alphabets from the Landau Singular Locus
Christoph Dlapa, Martin Helmer, Georgios Papathanasiou +1
We provide evidence through two loops, that rational letters of polylogarithmic Feynman integrals are captured by the Landau equations, when the latter are recast as a polynomial o…
An Origin Story for Amplitudes
Benjamin Basso, Lance J. Dixon, Yu-Ting Liu +1
We classify origin limits of maximally helicity violating multi-gluon scattering amplitudes in planar super-Yang-Mills theory, where a large number of cross ratios…
The SAGEX Review on Scattering Amplitudes, Chapter 5: Analytic Bootstraps for Scattering Amplitudes and Beyond
Georgios Papathanasiou
One of the main challenges in obtaining predictions for collider experiments from perturbative quantum field theory, is the direct evaluation of the Feynman integrals it gives rise…
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…
Singularities of eight- and nine-particle amplitudes from cluster algebras and tropical geometry
Niklas Henke, Georgios Papathanasiou
We further exploit the relation between tropical Grassmannians and cluster algebras in order to make and refine predictions for the singularities of scatte…
Cluster algebras for Feynman integrals
Dmitry Chicherin, Johannes M. Henn, Georgios Papathanasiou
We initiate the study of cluster algebras in Feynman integrals in dimensional regularization. We provide evidence that four-point Feynman integrals with one off-shell leg are descr…