Abstract
We present a two-loop calculation of the supersymmetric circular Wilson loop in the \( \mathcal{N} \) = 2* super Yang-Mills theory on the four-sphere. We develop an efficient framework for computing contributing Feynman graphs that relies on using the embedding coordinates combined with the Mellin-Barnes techniques for propagator-like integrals on the sphere. Our results exactly match predictions of supersymmetric localization providing a nontrivial consistency check for the latter in non-conformal settings.
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Belitsky, A.V., Korchemsky, G.P. Circular Wilson loop in \( \mathcal{N} \) = 2* super Yang-Mills theory at two loops and localization. J. High Energ. Phys. 2021, 89 (2021). https://doi.org/10.1007/JHEP04(2021)089
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DOI: https://doi.org/10.1007/JHEP04(2021)089