Dynamical supersymmetry breaking from unoriented D-brane instantons

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Published 12 August 2009 Published under licence by IOP Publishing Ltd
, , Citation Massimo Bianchi et al JHEP08(2009)040 DOI 10.1088/1126-6708/2009/08/040

1126-6708/2009/08/040

Abstract

We study the local dynamics of an unoriented Bbb Z5-quiver theory of GUT kind with gauge group U(5) and chiral matter. At strong coupling the non-perturbative dynamics is described in terms of baryon and meson variables satisfying a quantum deformed constraint. We compute the effective superpotential of the theory and show that it admits a line of supersymmetric vacua for vanishing FI terms and a phase where supersymmetry is dynamically broken via gaugino condensation for a non-vanishing FI term.

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10.1088/1126-6708/2009/08/040