Restrictions on dilatonic brane-world models
High Energy Physics - Phenomenology
2015-06-25 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
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.
Cite
@article{arxiv.hep-ph/0204195,
title = {Restrictions on dilatonic brane-world models},
author = {A. Zhuk},
journal= {arXiv preprint arXiv:hep-ph/0204195},
year = {2015}
}
Comments
MiKTeX2-LaTeX2e, 10 pages, minor changes, improved references, to appear in IJMPD