D3/D7 Branes at Singularities: Constraints from Global Embedding and Moduli Stabilisation
Abstract
In the framework of type IIB string compactifications on Calabi-Yau orientifolds we describe how to construct consistent global embeddings of models with fractional D3-branes and connected `flavour' D7-branes at del Pezzo singularities with moduli stabilisation. Our results are applied to build an explicit compact example with a left-right symmetric model at a dP_0 singularity which features three families of chiral matter and gauge coupling unification at the intermediate scale. We show how to stabilise the moduli obtaining a controlled de Sitter minimum and spontaneous supersymmetry breaking. We find an interesting non-trivial dynamical relation between the requirement of TeV-scale soft terms and the correct phenomenological values of the unified gauge coupling and unification scale.
Cite
@article{arxiv.1304.0022,
title = {D3/D7 Branes at Singularities: Constraints from Global Embedding and Moduli Stabilisation},
author = {Michele Cicoli and Sven Krippendorf and Christoph Mayrhofer and Fernando Quevedo and Roberto Valandro},
journal= {arXiv preprint arXiv:1304.0022},
year = {2015}
}
Comments
31 pages, 5 figures. v2: published version in JHEP, corrections in section 2.2, Appendix A added for better illustration, typos corrected