More on the duality correlators/amplitudes

Details More on the duality correlators/amplitudes More on the duality correlators/amplitudes

2010-09-13

arxiv.org/abs/1009.2488v2

Physics

High Energy Physics

High Energy Physics - Theory

14 pages Latex, 1 figure

Scientific paper

We continue the study of n-point correlation functions of half-BPS protected operators in N=4 super-Yang-Mills theory, in the limit where the positions of the adjacent operators become light-like separated. We compute the l-loop corrections by making l Lagrangian insertions. We argue that there exists a simple relation between the (n+l)-point tree-level correlator with l Lagrangian insertions and the integrand of the n-particle l-loop MHV scattering amplitude, as obtained by the recent momentum twistor construction of Arkani-Hamed et al. We present several examples of this new duality, at one and two loops.

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