From correlation functions to scattering amplitudes
From correlation functions to scattering amplitudes
We study the correlation functions of half-BPS protected operators in $ \mathcal{N} = {4} $ super-Yang-Mills theory, in the limit where the positions of adjacent operators become light-like separated. We compute the loop corrections by means of Lagrangian insertions. The divergences resulting from the light-cone limit are regularized by changing …