A note on Wilson–ʼt Hooft operators Original Research Article

We find explicitly the geometry of certain moduli spaces of BPS configurations in the presence of ʼt Hooft operators. This is required to compute the Operator Product Expansion of Wilson–ʼt Hooft operators in image super-Yang–Mills theory with gauge group image. We verify our results by reproducing the OPE of ʼt Hooft operators predicted by S-duality.