• Accepted Paper

Supersymmetry of cuts in pure gauge theory and gravity

Jacob L. Bourjaily

Phys. Rev. D - Accepted 24 September, 2026

DOI: https://doi.org/10.1103/wxp1-wzkp

Abstract

At tree-level, scattering amplitudes involving only gluons or gravitons are unaffected by supersymmetry, allowing them to be efficiently encoded by and extracted from those of maximally supersymmetric (𝒩=4,8) theories. This fails beyond tree-level, of course, but much less than would be expected. We show that all the leading singularities of (sub-maximally or) non-supersymmetric theories can be organized into superfunctions, in terms of which all helicity components can be effectively encoded. These functions differ from those of maximally supersymmetric theories by an extent determined by loop-order—broken into a sum over 2L supersymmetric pieces.

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