Bulk antisymmetric tensor fields in a Randall-Sundrum model

Details Bulk antisymmetric tensor fields in a Randall-Sundrum model Bulk antisymmetric tensor fields in a Randall-Sundrum model

2007-09-21

arxiv.org/abs/0709.3428v1

Phys.Rev.D76:121501,2007

Physics

High Energy Physics

High Energy Physics - Theory

8 Pages, Latex

Scientific paper

10.1103/PhysRevD.76.121501

We consider bulk antisymmetric tensor fields of various ranks in a Randall-Sundrum scenario. We show that, rank-2 onwards, the zero-modes of the projections of these fields on the (3+1) dimensional visible brane become increasingly weaker as the rank of the tensor increases. All such tensor fields of rank 4 or more are absent from the dynamics in four dimensions. This leaves only the zero-mode graviton to have coupling $\sim 1/M_P$ with matter, thus explaining why the large-scale behaviour of the universe is governed by gravity only. We have also computed the masses of the heavier modes upto rank-3, and shown that they are relatively less likely to have detectable accelerator signals.

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