A Note on (Meta)stable Brane Configurations in MQCD

Details A Note on (Meta)stable Brane Configurations in MQCD A Note on (Meta)stable Brane Configurations in MQCD

2006-08-22

arxiv.org/abs/hep-th/0608157v2

JHEP 0611:088,2006

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 7 figures, harvmac. v2 typo corrected

Scientific paper

10.1088/1126-6708/2006/11/088

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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