Wave function of the radion with BPS branes

Details Wave function of the radion with BPS branes Wave function of the radion with BPS branes

2002-09-18

arxiv.org/abs/hep-th/0209152v2

Mod.Phys.Lett. A20 (2005) 519-532

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, changed references and discussion of the literature

Scientific paper

10.1142/S0217732305016725

We investigate coupled gravity and a bulk scalar field on a slice of AdS_5 bulk with special BPS branes at the two ends. With the special scalar potentials on the branes the scalar field does not stabilize the size of the orbifold. With a careful treatment of the general coordinate invariance the complete tensor-scalar spectrum is presented. There are two massless zero modes in the scalar sector, the radion and a dilatonic zero mode. The scalar KK modes acquire masses at the order of the warped mass scale. The four dimensional effective action is of tensor-scalar type.

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