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We show that by studying the flat spacetime limit of the Mellin amplitudeassociated with the four-point correlation function of scalar operators in thestress tensor multiplet of ABJM theory, one can produce the momentum expansionof the M-theory four-graviton S-matrix elements. Using CFT data previouslyobtained from the supersymmetric localization method, we carry out thisprocedure explicitly to the second nontrivial order in the momentum expansion,and recover precisely the known $R^4$ contribution to the scattering amplitudeof super-gravitons in M-theory in eleven dimensions.

The M-Theory S-Matrix From ABJM: Beyond 11D Supergravity