University of Hertfordshire

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The Grassmannian for celestial superamplitudes

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Original languageEnglish
Article number187
Number of pages11
JournalJournal of High Energy Physics
Early online date25 Nov 2021
Publication statusE-pub ahead of print - 25 Nov 2021


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 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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