Mass hierarchy and localization of gravity in extra time
High Energy Physics - Theory
2009-10-31 v3 High Energy Physics - Phenomenology
Abstract
We consider Randall-Sundrum model with localized gravity, replacing the extra compact space-like dimension by a time-like one. In this way the solution to the hierarchy problem can be reconciled with a correct cosmological expansion of the visible universe, just as a trivial result of the sign flip of cosmological constants in the bulk and on the 3-branes relative to the case of extra space-like dimension. Some phenomenological aspects of the proposed scenario related to the tachyonic nature of Kaluza-Klein states of graviton are also discussed.
Keywords
Cite
@article{arxiv.hep-th/0003269,
title = {Mass hierarchy and localization of gravity in extra time},
author = {Masud Chaichian and Archil B. Kobakhidze},
journal= {arXiv preprint arXiv:hep-th/0003269},
year = {2009}
}
Comments
10 pages, JHEP format, no figures, typos corrected, to appear in Phys. Lett. B