Classical solutions and their double copy in split signature

Abstract The three-point amplitude is the key building block in the on-shell approach to scattering amplitudes. We show that the classical objects computed by massive three-point amplitudes in gauge theory and gravity are Newman-Penrose scalars in a split-signature spacetime, where three-point ampli...

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Bibliographic Details
Main Authors: Ricardo Monteiro, Donal O’Connell, David Peinador Veiga, Matteo Sergola
Format: Article
Language:English
Published: SpringerOpen 2021-05-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP05(2021)268