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arXiv · 2107.07496

The Grassmannian for Celestial Superamplitudes

Livia Ferro·Robert Moerman
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Abstract

Recently, scattering amplitudes in four-dimensional Minkowski spacetime have been interpreted as conformal correlation functions on the two-dimensional celestial sphere, the so-called celestial amplitudes. In this note we consider tree-level scattering amplitudes in $\mathcal{N}=4$ super Yang-Mills theory and present a Grassmannian formulation of their celestial counterparts. This result paves the way towards a geometric picture for celestial superamplitudes, in the spirit of positive geometries.

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Livia Ferro, Robert Moerman. 2021-07-15. The Grassmannian for Celestial Superamplitudes. https://doi.org/10.1007/jhep11(2021)187

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