On Brane Stabilization and the Cosmological Constant

Details On Brane Stabilization and the Cosmological Constant On Brane Stabilization and the Cosmological Constant

2000-12-12

arxiv.org/abs/hep-th/0012106v2

Phys.Lett. B509 (2001) 307-314

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, 1 figure, clarified presentation in the third section, references added, to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(01)00458-0

We address the problem of the cosmological constant within the Randall-Sundrum scenario with a brane stabilization mechanism. We consider brane tensions of general form. We examine the conditions under which a small change of the positive tension of the first brane can be absorbed in a small modification of the two-brane configuration, instead of manifesting itself as a cosmological constant. We demonstrate that it is possible to have a cosmological constant in the range predicted by recent observational data, if there is an ultraviolet cutoff of order 10 TeV in the contributions to the brane tension from vacuum fluctuations.

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