A Novel Approach to the Cosmological Constant Problem

Abstract

We propose a novel infinite-volume brane world scenario where we live on a non-inflating spherical 3-brane, whose radius is somewhat larger than the present Hubble size, embedded in higher dimensional bulk. Once we include higher curvature terms in the bulk, we find completely smooth solutions with the property that the 3-brane world-volume is non-inflating for a continuous range of positive values of the brane tension, that is, without fine-tuning. In particular, our solution, which is a near-BPS background with supersymmetry broken on the brane around TeV, is controlled by a single integration constant.

20 pages, revtex

References in corpus (7)

• 4D Gravity on a Brane in 5D Minkowski Space
• Gravity on a Brane in Infinite-Volume Extra Space
• Gravity on a 3-brane in 6D Bulk
• Cosmic p-branes
• Localized Gravity and Higher Curvature Terms
• A Remark on Smoothing Out Higher Codimension Branes
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Cited by in corpus (6)

• Softly Massive Gravity
• Graviton Mass or Cosmological Constant?
• Codimension Two Branes in Einstein-Gauss-Bonnet Gravity
• Massless Limit of Gravitational Higgs Mechanism
• Vacuum Polarization in an Anti-de Sitter Space as an Origin for a Cosmological Constant in a Brane World
• The Cosmological Constant Problem and the Extra Dimensions of $\mathcal{N}=2$ $\mathcal{D}=5$ Supergravity