On supersymmetry breaking vacua from D-branes at orientifold singularities

Abstract

We present a large class of models of D-branes at (orientifold) Calabi-Yau singularities which enjoy dynamical supersymmetry breaking at low energy, by means of either the $SU(5)$ or 3-2 supersymmetry breaking models. Once embedded in a warped throat or, equivalently, in a large $N$ theory, all models display an instability along a Coulomb branch direction towards supersymmetry preserving vacua. Interestingly, the nature of the runaway mechanism is model-independent and has a precise geometrical interpretation. This naturally suggests the properties a Calabi-Yau singularity should have in order for such instability not to occur.

arXiv comment50 pages, several figures. v2: minor edits, version to appear in journal. v3: typos corrected

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• Dimers in a Bottle
• Gravity, finite duality cascades and confinement
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