paper

Gauge Symmetry and Supersymmetry Breaking From Intersecting Branes

arXiv:hep-th/0703135 · doi:10.1016/j.nuclphysb.2007.04.033

Abstract

We study a system of intersecting NS and D-branes in type IIA string theory in R^{9,1}. We show that the 3+1 dimensional non-supersymmetric theory at the intersection has unstable vacua which are long-lived in some regions of the parameter space of brane configurations, and disappear in others. We also comment on the relation of our construction to systems of D and anti D-branes wrapped around cycles of non-compact Calabi-Yau manifolds and to other related systems.

arXiv comment39 pages, harvmac, 14 figures

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