The two-loop eight-point amplitude in ABJM theory

A bstract In this paper, we present the two-loop correction to scattering amplitudes in three-dimensional $$ \mathcal{N} N = 6 Chern-Simons matter theory. We use eight-point case as our main example, but method generalizes all multiplicities. The integrand is completely fixed by dual conformal symmetry, maximal cuts, constraints from soft-collinear behavior, and vanishing of odd-multiplicity amplitudes. After performing integrations with Higgs regularizations, integrated results demonstrate that infrared divergence again identical 4 super Yang-Mills. subtracting divergences, finite part invariant, respects various symmetries; it has uniform transcendentality weight two exhibits a nice analytic structure.