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Meta-Stable Brane Configuration of Product Gauge Groups

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 Added by Changhyun Ahn
 Publication date 2008
  fields
and research's language is English
 Authors Changhyun Ahn




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Starting from the N=1 SU(N_c) x SU(N_c) gauge theory with fundamental and bifundamental flavors, we apply the Seiberg dual to the first gauge group and obtain the N=1 dual gauge theory with dual matters including the gauge singlets. By analyzing the F-term equations of the superpotential, we describe the intersecting type IIA brane configuration for the meta-stable nonsupersymmetric vacua of this gauge theory. By introducing an orientifold 6-plane, we generalize to the case for N=1 SU(N_c) x SO(N_c) gauge theory with fundamental and bifundamental flavors. Finally, the N=1 SU(N_c) x Sp(N_c) gauge theory with matters is also described very briefly.



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We examine the M-theory version of SQCD which is known as MQCD. In the IIA limit, this theory appears to have a supersymmetry-breaking brane configuration which corresponds to the meta-stable state of N=1 SU(Nc) SQCD. However, the behavior at infinity of this non-supersymmetric brane construction differs from that of the supersymmetric ground state of MQCD. We interpret this to mean that it is not a meta-stable state in MQCD, but rather a state in another theory. This provides a concrete example of the fact that, while MQCD accurately describes the supersymmetric features of SCQD, it fails to reproduce its non-supersymmetric features (such as meta-stable states) not only quantitatively but also qualitatively.
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134 - A. Pinzul , A. Stern 2007
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