DUALITY AND DYNAMICAL SUPERSYMMETRY BREAKING IN SPIN(10) WITH A SPINOR

We study N = 1 supersymmetric Spin(10) chiral gauge theories with a si ngle spinor representation and N vector representations. We present a dual description in terms of an N = 1 supersymmetric SU(N - 5) chiral gauge theory with a symmetric tensor, one fundamental and N antifundam ental representations. The Spin(10) theory with N = 0 breaks supersymm etry at strong coupling; we study how this arises at weak coupling in the dual theory, which is a spontaneously broken gauge theory. Also, w e recover various known dualities, find new dual pairs and generate ne w examples of dynamical supersymmetry breaking.