Restrictions on dilatonic brane-world models

Abstract

We consider dilatonic brane-world models with a non-minimal coupling between a dilaton and usual matter on a brane. We demonstrate that variation of the fundamental constants on the brane due to such interaction leads to strong restrictions on parameters of models. In particular, the experimental bounds on variation of the fine structure constant rule out non-minimal dilatonic models with a Liouville-type coupling potential f(varphi) = exp (b varphi) where b is order of 1.

MiKTeX2-LaTeX2e, 10 pages, minor changes, improved references, to appear in IJMPD

References in corpus (3)

• Further Evidence for Cosmological Evolution of the Fine Structure Constant
• The Confrontation between General Relativity and Experiment
• Cosmological Brane World Solutions with Bulk Scalar Fields

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