Higgs branch localization of 3d N=2 theories

We study N = 2 supersymmetric gauge theories on a squashed 3-sphere and S-1 x S-2. Recent studies have shown that the partition functions in a class of N = 2 theories have factorized forms in terms of vortex and anti-vortex partition functions by explicitly evaluating matrix integrals obtained from Coulomb branch localization. We directly derive this structure by performing Higgs branch localization. It turns out that more general N = 2 theories have this factorization property. We also discuss the factorization of the supersymmetric Wilson loop.