Bonus Yangian Symmetry for the Planar S-Matrix of N=4 Super Yang-Mills
arXiv:1103.0646 · doi:10.1103/PhysRevLett.106.231602
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.
8 pages, v2: minor changes
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