A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World
High Energy Physics - Theory
2009-10-31 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
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.
Cite
@article{arxiv.hep-th/0002164,
title = {A Comment on Self-Tuning and Vanishing Cosmological Constant in the Brane World},
author = {Stefan Forste and Zygmunt Lalak and Stephane Lavignac and Hans Peter Nilles},
journal= {arXiv preprint arXiv:hep-th/0002164},
year = {2009}
}
Comments
7 pages, Latex, final version to appear in Phys. Lett. B