4 papers
Propagators, BCFW Recursion and New Scattering Equations at One Loop
Joseph A. Farrow, Yvonne Geyer, Arthur E. Lipstein +2
We investigate how loop-level propagators arise from tree level via a forward-limit procedure in two modern approaches to scattering amplitudes, namely the BCFW recursion relations…
Monopoles, shockwaves and the classical double copy
Nadia Bahjat-Abbas, Ricardo Stark-Muchão, Chris D. White
The classical double copy relates exact solutions in biadjoint scalar, gauge and gravity theories. Recently, nonperturbative solutions have been found in biadjoint theory, which ha…
Two-Loop Scattering Amplitudes: Double-Forward Limit and Colour-Kinematics Duality
Yvonne Geyer, Ricardo Monteiro, Ricardo Stark-Muchão
We propose new formulae for the two-loop n-point D-dimensional integrands of scattering amplitudes in Yang-Mills theory and gravity. The loop integrands are written as a double-for…
Biadjoint wires
Nadia Bahjat-Abbas, Ricardo Stark-Muchão, Chris D. White
Biadjoint scalar field theory has been the subject of much recent study, due to a number of applications in field and string theory. The catalogue of exact non-linear solutions of…