Bulk gravitons from a cosmological brane

Details Bulk gravitons from a cosmological brane Bulk gravitons from a cosmological brane

2003-06-27

arxiv.org/abs/hep-th/0306281v2

Phys.Rev.D68:084006,2003

Physics

High Energy Physics

High Energy Physics - Theory

27 pages, 5 figures, minor corrections. Final version

Scientific paper

10.1103/PhysRevD.68.084006

We investigate the emission of gravitons by a cosmological brane into an Anti de Sitter five-dimensional bulk spacetime. We focus on the distribution of gravitons in the bulk and the associated production of `dark radiation' in this process. In order to evaluate precisely the amount of dark radiation in the late low-energy regime, corresponding to standard cosmology, we study numerically the emission, propagation and bouncing off the brane of bulk gravitons.

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