Some examples of chiral moduli spaces and dynamical supersymmetry breaking

We investigate the low-energy dynamics of SU(N) gauge theories with one antisymmetric tensor field, N − 4 + Nf antifundamentals and Nf fundamentals, for Nf ⩽ 3. For Nf = 3 we construct the quantum moduli space, and for Nf < 3 we find the exact quantum superpotentials. We find two large classes of models with dynamical supersymmetry breaking. The odd N theories break supersymmetry once appropriate mass terms are added in the superpotential. The even N theories break supersymmetry after gauging an extra chiral U(1) symmetry.