Smoothing out Negative Tension Brane
High Energy Physics - Phenomenology
2009-11-19 v3 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We propose an extension of the five dimensional gravitational action with an external source in order to allow arbitrary smoothing of the negative tension brane in the Randall-Sundrum model. This extended action can be derived from a model with an auxiliary four form field coupled to the gravity. We point out a further generalization of our model in relation to tachyon condensation. A possible mechanism for radion stabilization in our model is also discussed.
Keywords
Cite
@article{arxiv.0811.3459,
title = {Smoothing out Negative Tension Brane},
author = {Kin-ya Oda and Takao Suyama and Naoto Yokoi},
journal= {arXiv preprint arXiv:0811.3459},
year = {2009}
}
Comments
12 pages, 4 figures (v1); References added (v2); Footnote 7 and a reference added, version to appear in Physics Letters B (v3)