D-terms and F-terms from D7-brane fluxes

Details D-terms and F-terms from D7-brane fluxes D-terms and F-terms from D7-brane fluxes

2005-02-04

arxiv.org/abs/hep-th/0502059v3

Nucl.Phys.B718:203-246,2005

Physics

High Energy Physics

High Energy Physics - Theory

1+44 pages, Latex; minor changes

Scientific paper

10.1016/j.nuclphysb.2005.04.011

Using a Kaluza-Klein reduction of the fermionic part of the D-brane action we compute D- and F-terms of the N=1 effective action for generic Calabi-Yau orientifold compactifications in the presence of a space-time filling D7-brane. We include non-trivial background fluxes for the D7-brane U(1) field strength on the internal four-cycle wrapped by the brane. First the four-dimensional fermionic spectrum arising from the D7-brane is derived and then the D- and F-terms are obtained by computing appropriate couplings of these fermionic fields. For specific examples we examine the resulting flux-induced scalar potentials and comment on their relevance in string cosmology.

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