A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World

Details A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World

2000-02-20

arxiv.org/abs/hep-th/0002164v2

Phys.Lett. B481 (2000) 360-364

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, Latex, final version to appear in Phys. Lett. B

Scientific paper

10.1016/S0370-2693(00)00468-8

In this note we elaborate on various five dimensional contributions to the
effective 4D cosmological constant in brane systems. In solutions with
vanishing 5D cosmological constant we describe a non-local mechanism of
cancellation of vacuum energy between the brane and the singularities. We
comment on a hidden fine tuning which is implied by this observation.

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