Cosmological Constant, Gauge Hierarchy and Warped Geometry

Details Cosmological Constant, Gauge Hierarchy and Warped Geometry Cosmological Constant, Gauge Hierarchy and Warped Geometry

2002-07-18

arxiv.org/abs/hep-ph/0207232v3

Phys.Rev. D68 (2003) 023503

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX, 2 figures, section on quantum corrections added, version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.68.023503

It is suggested that the mechanism responsible for the resolution of the gauge hierarchy problem within the warped geometry framework can be generalized to provide a new explanation of the extremely tiny vacuum energy density rho_V suggested by recent observations. We illustrate the mechanism with some 5D examples in which the true vacuum energy is assumed to vanish, and rho_V is associated with a false vacuum energy such that rho_V^{1/4} ~ TeV^2/M_{Pl} ~ 10^{-3} eV, where M_{Pl} denotes the reduced Planck mass. We also consider a quintessence-like solution to the dark energy problem.

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