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Abstract: We study the correlators of half-BPS protected operators in N=4super-Yang-Mills theory, in the limit where the positions of the adjacentoperators become light-like separated. We compute the loop corrections by meansof Lagrangian insertions. The divergences resulting from the light-cone limitare regularized by changing the dimension of the integration measure over theinsertion points. Switching from coordinates to dual momenta, we show that thelogarithm of the correlator is identical with twice the logarithm of thematching MHV gluon scattering amplitude. We present a number of examples ofthis new relation, at one and two loops.



Author: Burkhard Eden, Gregory P. Korchemsky, Emery Sokatchev

Source: https://arxiv.org/







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