3 papers
hep-th2025
Geometric duality between effective field theories I: scattering amplitudes
Tomas Brauner, Yang Li, Diederik Roest +1
We propose a novel type of duality that connects a sequence of well-known theories with even-multiplicity scalar amplitudes: it relates the Yang-Mills theory coupled to a specific…
hep-th2024
Diagrammatic Derivation of Hidden Zeros and Exact Factorisation of Pion Scattering Amplitudes
Yang Li, Tianzhi Wang, Tomáš Brauner +1
Pion scattering amplitudes were recently found to vanish on specific kinematic loci, and to factorise close to these loci into a product of two lower-point amplitudes of an extende…
hep-th2024
Bertranďs Theorem and the Double Copy of Relativistic Field Theories
Dijs de Neeling, Diederik Roest, Marcello Seri +1
Which relativistic field theories give rise to Kepler dynamics in the two-body problem? We consider a class of Hamiltonians that is the unique relativistic extension of the Kepler…