Chiral 4d string vacua with D-branes and NSNS and RR fluxes

Details Chiral 4d string vacua with D-branes and NSNS and RR fluxes Chiral 4d string vacua with D-branes and NSNS and RR fluxes

2003-03-04

arxiv.org/abs/hep-th/0303024v2

JHEP 0305:011,2003

Physics

High Energy Physics

High Energy Physics - Theory

latex, 49 pages, 2 figures

Scientific paper

10.1088/1126-6708/2003/05/011

We discuss type IIB orientifolds with D-branes, and NSNS and RR field strength fluxes. The D-brane sectors lead to open string spectra with non-abelian gauge symmetry and charged chiral fermions. The closed string field strengths generate a scalar potential stabilizing most moduli. We describe the construction of N=1 supersymmetric models in the context of orientifolds of IIB theory on T^6/Z_2 x Z_2, containing D9-branes with world-volume magnetic fluxes, and illustrate model building possibilities with several explicit examples. We comment on a T-dual picture with D8-branes on non-Calabi-Yau half-flat geometries, and discuss some of the topological properties of such configurations. We also explore the construction of models with fluxes and with D3-branes at singularities and present a non-supersymmetric 3-family SU(5) model.

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