Non-perturbative SQCD Superpotentials from String Instantons

Abstract

The Affleck-Dine-Seiberg instanton generated superpotential for SQCD with Nf=Nc-1 flavours is explicitly derived from a local model of engineered intersecting D6-branes with a single E2-instanton. This computation extends also to symplectic gauge groups with Nf=Nc flavours.

39 pages, 4 figures; v2: ref. and footnote added; v3: clarifying comments added, version to appear in JHEP

References in corpus (4)

• Neutrino Majorana Masses from String Theory Instanton Effects
• Gaugino Condensates and D-terms from D7-branes
• Moduli Stabilization in Type IIB Orientifolds (II)
• Derivative F-Terms from Heterotic M-Theory Five-brane Instantons

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• Instanton effects in N=1 brane models and the Kahler metric of twisted matter
• Thresholds for Intersecting D-branes Revisited
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• Neutrino Masses and Mixings from String Theory Instantons
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• Non-perturbative superpotentials across lines of marginal stability
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• Stringy Instantons and Yukawa Couplings in MSSM-like Orientifold Models
• Dynamical supersymmetry breaking from unoriented D-brane instantons
• Non-perturbative effective interactions from fluxes
• Classical solutions for exotic instantons?
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• String GUT Scenarios with Stabilised Moduli
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• D-brane Instantons in 4D Supersymmetric String Vacua
• Non-Perturbative Effects on a Fractional D3-Brane