Moduli Stabilisation versus Chirality for MSSM like Type IIB Orientifolds

Details Moduli Stabilisation versus Chirality for MSSM like Type IIB Orientifolds Moduli Stabilisation versus Chirality for MSSM like Type IIB Orientifolds

2007-11-21

arxiv.org/abs/0711.3389v2

JHEP0801:058,2008

Physics

High Energy Physics

High Energy Physics - Theory

43 pages, 4 figures, v2: refs. added

Scientific paper

10.1088/1126-6708/2008/01/058

We investigate the general question of implementing a chiral MSSM like D-brane sector in Type IIB orientifold models with complete moduli stabilisation via F-terms induced by fluxes and space-time instantons, respectively gaugino condensates. The prototype examples are the KKLT and the so-called large volume compactifications. We show that the ansatz of first stabilising all moduli via F-terms and then introducing the Standard Model module is misleading, as a chiral sector notoriously influences the structure of non-perturbative effects and induces a D-term potential. Focusing for concreteness on the large volume scenario, we work out the geometry of the swiss-cheese type Calabi-Yau manifold P_[1,3,3,3,5][15]_(3,75) and analyse whether controllable and phenomenologically acceptable Kaehler moduli stabilisation can occur by the combination of F- and D-terms.

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