META-STABLE BRANE CONFIGURATIONS WITH FIVE NS5-BRANES

摘要

From an N = 1 supersymmetric electric gauge theory with the gauge group SU(Nc) ×SU(N'c ) with fundamentals for each gauge group, the bifundamentals and a symmetric flavor and a conjugate symmetric flavor for SU(Nc), we apply Seiberg dual to each gauge group independently and obtain two N = 1 supersymmetric dual magnetic gauge theories with dual matters including the gauge singlets. By analyzing the F-term equations of the dual magnetic superpotentials, we describe the intersecting brane configurations of type IIA string theory corresponding to the meta-stable nonsupersymmetric vacua of these gauge theories. The case where the above symmetric flavor is replaced by an antisymmetric flavor is also discussed.