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A note on brane boxes at finite string coupling

Eric G. Gimon, Martin Gremm

hep-tharXiv:hep-th/9803033

Abstract

We consider N=1 supersymmetric SU(Nc) gauge theories, using the type IIB brane construction recently proposed by Hanany and Zaffaroni. At non-zero string coupling, we find that the bending of branes imposes consistency conditions that allow only non-anomalous gauge theories with stable vacua, i.e., Nf >= Nc, to be constructed. We find qualitative differences between the brane configurations for Nf <= 3Nc and Nf > 3Nc, corresponding to asymptotically free and infrared free theories respectively. We also discuss some properties of the brane configurations that may be relevant to constructing Seiberg's duality in this framework.

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