Axion Stabilization in Type IIB Flux Compactifications

Details Axion Stabilization in Type IIB Flux Compactifications Axion Stabilization in Type IIB Flux Compactifications

2008-10-20

arxiv.org/abs/0810.3329v3

JHEP 0901:046,2009

Physics

High Energy Physics

High Energy Physics - Theory

34 pages, 1 figure; improved referencing, published version

Scientific paper

10.1088/1126-6708/2009/01/046

A scenario for stabilization of axionic moduli fields in the context of type IIB Calabi-Yau flux compactifications is discussed in detail. We consider the case of a Calabi-Yau orientifold with h^{1,1}_- \neq 0 which allows for the presence of B_2 and C_2-moduli. In an attempt to generalize the KKLT and the Large Volume Scenario, we show that these axions can also be stabilized - some already at tree level, and others when we include perturbative \alpha'-corrections to the Kaehler potential K and nonperturbative D3-instanton contributions to the superpotential W. At last, we comment on the possible influence of worldsheet instantons on the process of moduli stabilization.

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