Mass deformations of brane brick models

A bstract We investigate a class of mass deformations that connect pairs 2 d (0 , 2) gauge theories associated to different toric Calabi-Yau 4-folds. These are generalizations the well-known Klebanov-Witten deformation relating 4 for ℂ / ℤ × orbifold and conifold. various aspects these deformations, including their connection brane brick models relation between change in geometry pattern symmetry breaking triggered by deformation. also explore how volume Sasaki-Einstein 7-manifold at base 4-fold varies under deformation, which leads us conjecture it quantifies number degrees freedom theory its dependence on RG scale.