171 citations · 282 across the 3 of their papers we have counts for
4 papers
Massive ambitwistor-strings; twistorial models
Giulia Albonico, Yvonne Geyer, Lionel Mason
Ambitwistor-strings are chiral strings whose targets are spaces of complex massless particles, and whose correlation functions directly lead to simple, compact formulae for scatter…
Ambitwistor Strings: Worldsheet Approaches to perturbative Quantum Field Theories
Yvonne Geyer
Tree-level scattering amplitudes in massless theories not only exhibit a simplicity entirely unexpected from Feynman diagrams, but also an underlying structure remarkably reminisce…
Two-Loop Scattering Amplitudes from the Riemann Sphere
Yvonne Geyer, Lionel Mason, Ricardo Monteiro +1
The scattering equations give striking formulae for massless scattering amplitudes at tree level and, as shown recently, at one loop. The progress at loop level was based on ambitw…
Ambitwistor strings in 4-dimensions
Yvonne Geyer, Arthur E. Lipstein, Lionel J. Mason
We develop ambitwistor string theories for 4 dimensions to obtain new formulae for tree-level gauge and gravity amplitudes with arbitrary amounts of supersymmetry. Ambitwistor spac…