Abstract
We compute the two-loop Sudakov form factor in three-dimensional \( \mathcal{N}=6 \) superconformal Chern-Simons theory, using generalised unitarity. As an intermediate step, we derive the non-planar part of the one-loop four-point amplitude in terms of box integrals. Our result for the Sudakov form factor is given by a single non-planar tensor integral with uniform degree of transcendentality, and is in agreement with the known infrared divergences of two-loop amplitudes in ABJM theory. We also discuss a number of interesting properties satisfied by related three-dimensional integral functions.
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ArXiv ePrint: 1305.2421
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Brandhuber, A., Gürdoğan, Ö., Korres, D. et al. Two-loop Sudakov form factor in ABJM. J. High Energ. Phys. 2013, 22 (2013). https://doi.org/10.1007/JHEP11(2013)022
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DOI: https://doi.org/10.1007/JHEP11(2013)022