Soft Supersymmetry Breaking in Calabi-Yau Orientifolds with D-branes and Fluxes

Details Soft Supersymmetry Breaking in Calabi-Yau Orientifolds with D-branes and Fluxes Soft Supersymmetry Breaking in Calabi-Yau Orientifolds with D-branes and Fluxes

2003-12-18

arxiv.org/abs/hep-th/0312232v3

Nucl.Phys.B690:21-61,2004

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX, 41 pages, minor corrections and references added

Scientific paper

10.1016/j.nuclphysb.2004.04.021

In this paper we compute the N=1 effective low energy action for a stack of N space-time filling D3-branes in generic type IIB Calabi-Yau orientifolds with non-trivial background fluxes by reducing the Dirac-Born-Infeld and Chern-Simons actions. Specifically, we determine the Kahler potential for the excitations of the D-brane including their couplings to all bulk moduli fields. In the effective theory, N=1 supergravity is spontaneously broken by the presence of fluxes and we compute the induced soft supersymmetry breaking terms. We find an interesting structure in the resulting soft terms with generically universal soft scalar masses.

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