New "Electric" Description of Supersymmetric Quantum Chromodynamics
Abstract
Responding to the recent claim that the origin of moduli space may be unstable in "magnetic" supersymmetric quantum chromodynamics (SQCD) with Nf <= 3Nc/2 (Nc>2) for Nf flavors and Nc colors of quarks, we explore the possibility of finding nonperturbative physics for "electric" SQCD. We present a recently discussed effective superpotential for "electric" SQCD with Nc+2 <= Nf <= 3Nc/2 (Nc>2) that generates chiral symmetry breaking with a residual nonabelian symmetry of SU(Nc)L+RxSU(Nf-Nc)Lx SU(Nf-Nc)R. Holomorphic decoupling property is shown to be respected. For massive Nf-Nc quarks, our superpotential with instanton effect taken into account produces a consistent vacuum structure for SQCD with Nf=Nc compatible with the holomorphic decoupling.
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