94 citations · 221 across the 14 of their papers we have counts for
4 papers · 1 filter
Classical worldlines from scattering amplitudes
Zeno Capatti, Mao Zeng
We present a systematic diagrammatic investigation of the classical limit of observables computed from scattering amplitudes in quantum field theory through the Kosower-Maybee-O'Co…
Flow Oriented Perturbation Theory
Alexandre Salas-Bernárdez, Michael Borinsky, Zeno Capatti +1
Flow Oriented Perturbation Theory (FOPT) is a novel approach to Feynman diagrams based on the coordinate (position) space description of Quantum Field Theories (QFT). FOPT offers i…
Exposing the threshold structure of loop integrals
Zeno Capatti
The understanding of the physical laws determining the infrared behaviour of amplitudes is a longstanding and topical problem. In this paper, we show that energy conservation alone…
Flow-oriented perturbation theory
Michael Borinsky, Zeno Capatti, Eric Laenen +1
We introduce a new diagrammatic approach to perturbative quantum field theory, which we call flow-oriented perturbation theory (FOPT). Within it, Feynman graphs are replaced by str…