The two-loop eight-point amplitude in ABJM theory

DOI10.1007/JHEP02(2023)065arXiv2211.01792MaRDI QIDQ6045623

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Publication date: 12 May 2023

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

Full work available at URL: https://arxiv.org/abs/2211.01792

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