Theoretical High Energy Seminar – Niels Bohr Institute - University of Copenhagen

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Theoretical High Energy Seminar

James Drummond (Annecy)

Title: Dual superconformal symmetry of scattering amplitudes in N=4 SYM

Abstract: I will discuss some recent advances in the study of scattering amplitudes in N=4 SYM. In particular I will highlight a duality between the simplest (MHV) amplitudes and Wilson loops.

This duality implies a novel symmetry of amplitudes, dual conformal symmetry, which is distinct from the ordinary conformal symmetry of N=4 SYM.

I will show that the symmetry can be naturally extended to a full dual superconformal symmetry of all scattering amplitudes in N=4 SYM and I will describe explicity how it is realised on the amplitudes, with direct confirmation at tree-level and one loop.