2003/03/24 by Juan F. G. Cascales, Juan F. G Cascales, Angel M. Uranga +1 · 5 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Cosmology and Gravitation Theories #Fermion #Gravitational singularity #Moduli #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum gravity #Quantum mechanics #Relationship between string theory and quantum field theory #String (physics) #String field theory #String theory #Supergravity #Supersymmetry #Theoretical physics #Type I string theory #hep-ph #hep-th
paper · pdf · doi:10.1088/1126-6708/2003/05/011
published as JHEP 0305:011,2003 · latex, 49 pages, 2 figures
arxiv created 2003/03/24 · openalex publication_date 2003/05/07 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 T6/Z2 x Z2, 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.