Abstract
In these notes we describe how to formulate the Lagrangian insertion technique in a way that mimics generalized unitarity. We introduce a notion of cuts in position space and show that the cuts of the correlators in the super-correlators/super-amplitudes duality correspond to generalized unitarity cuts of the equivalent amplitudes. The cuts consist of correlation functions of operators in the chiral part of the stress-tensor multiplet as well as other half-BPS operators. We will also discuss the application of the method to other correlators as well as non-planar contributions.
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Engelund, O.T. Lagrangian insertion in the light-like limit and the super-correlators/super-amplitudes duality. J. High Energ. Phys. 2016, 30 (2016). https://doi.org/10.1007/JHEP02(2016)030
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DOI: https://doi.org/10.1007/JHEP02(2016)030