Moduli-Space Approximation for BPS Brane-Worlds

Details Moduli-Space Approximation for BPS Brane-Worlds Moduli-Space Approximation for BPS Brane-Worlds

2004-07-06

arxiv.org/abs/hep-th/0407036v1

Phys.Rev. D70 (2004) 106003

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, 1 figure

Scientific paper

10.1103/PhysRevD.70.106003

We develop the moduli-space approximation for the low energy regime of BPS-branes with a bulk scalar field to obtain an effective four-dimensional action describing the system. An arbitrary BPS potential is used and account is taken of the presence of matter in the branes and small supersymmetry breaking terms. The resulting effective theory is a bi-scalar tensor theory of gravity. In this theory, the scalar degrees of freedom can be stabilized naturally without the introduction of additional mechanisms other than the appropriate BPS potential. We place observational constraints on the shape of the potential and the global configuration of branes.

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