Branes, partition functions, and quadratic monopole superpotentials

We obtain the brane setup describing 3d N = 2 dualities for USp(2N(c)) and U(Nc) SQCD with monopole superpotentials. This classification follows from a complete analysis of affine and twisted affine compactifications from 4d. The analysis leads to a new duality for the unitary case that has previously been overlooked in the literature. We check this by matching the three-sphere partition function of the two sides of this new duality and find a perfect agreement. Furthermore, we use the partition function to predict new 3d N = 2 dualities for SQCD with monopole superpotentials and tensorial matter.