Four-modulus "Swiss Cheese" chiral models

Abstract

We study the 'Large Volume Scenario' on explicit, new, compact, four-modulus Calabi-Yau manifolds. We pay special attention to the chirality problem pointed out by Blumenhagen, Moster and Plauschinn. Namely, we thoroughly analyze the possibility of generating neutral, non-perturbative superpotentials from Euclidean D3-branes in the presence of chirally intersecting D7-branes. We find that taking proper account of the Freed-Witten anomaly on non-spin cycles and of the Kaehler cone conditions imposes severe constraints on the models. Nevertheless, we are able to create setups where the constraints are solved, and up to three moduli are stabilized.

40 pages, 10 figures, clarifying comments added, minor mistakes corrected

References in corpus (11)

• Spacetime Instanton Corrections in 4D String Vacua - The Seesaw Mechanism for D-Brane Models
• GUTs in Type IIB Orientifold Compactifications
• Moduli Stabilisation versus Chirality for MSSM like Type IIB Orientifolds
• D-brane Deconstructions in IIB Orientifolds
• Systematics of String Loop Corrections in Type IIB Calabi-Yau Flux Compactifications
• D-brane Instantons on the T^6/Z_3 orientifold
• Non-perturbative F-terms across lines of BPS stability
• Non-perturbative superpotentials across lines of marginal stability
• What Does(n't) K-theory Classify?
• F-Theory, GUTs and Chiral Matter
• D-brane Instantons in 4D Supersymmetric String Vacua