Bonus Yangian Symmetry for the Planar S-Matrix of N=4 Super Yang-Mills

TL;DR

This paper presents evidence for a new Yangian symmetry, the level-one helicity operator, in the planar S-matrix of N=4 Super Yang-Mills, extending the understanding of its symmetry structure.

Contribution

It introduces and provides evidence for a previously unobserved Yangian level-one helicity operator symmetry in the planar S-matrix.

Findings

Evidence for the Yangian level-one helicity operator

Extension of Yangian symmetry in N=4 Super Yang-Mills

Potential implications for integrability and scattering amplitudes

Abstract

Recent developments in the determination of the planar S-matrix of N=4 Super Yang-Mills are closely related to its Yangian symmetry. Here we provide evidence for a yet unobserved additional symmetry: the Yangian level-one helicity operator.