Four-Dimensional Supergravities from Five-Dimensional Brane Worlds

Abstract

We give the explicit form of the four dimensional effective supergravity action, which describes low energy physics of the Randall-Sundrum model with moduli fields in the bulk and charged chiral matter living on the branes. The relation between 5d and 4d physics is explicit: the low energy action is derived from the compactification of a locally supersymmetric model in five dimension. The presence of odd $Z_2$ parity scalars in the bulk gives rise to effective potential for the radion in four dimensions. We describe the mechanism of supersymmetry breaking mediation, which relies on non-trivial configuration of these $Z_2$-odd bulk fields. Broken supersymmetry leads to stabilization of the interbrane distance.

27 pages, plain Latex, typos corrected

References in corpus (3)

• Hierarchy Stabilization in Warped Supersymmetry
• Supersymmetric Radion in the Randall-Sundrum Scenario
• Supersymmetric new brane-world

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