Improving the `self-tuning' mechanism with a Gauss-Bonnet term
Stephen C. Davis
Abstract
The effects of higher order gravity terms on a dilatonic brane world model are discussed. For a single positive tension flat 3-brane, and one infinite extra dimension, we present a particular class of solutions with finite 4-dimensional Planck scale and no naked singularities. A `self-tuning' mechanism for relaxing the cosmological constant on the brane, without a drastic fine tuning of parameters, is discussed in this context.
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