On the sign of the dilaton in the soft wall models
High Energy Physics - Phenomenology
2015-04-27 v1 High Energy Physics - Theory
Abstract
We elaborate on the existence of a spurious massless scalar mode in the vector channel of soft-wall models with incorrectly chosen sign of the exponential profile defining the wall. We re-iterate the point made in our earlier paper and demonstrate that the presence of the mode is robust, depending only on the infra-red asymptotics of the wall. We also re-emphasize that desired confinement properties can be realized with the correct sign choice.
Keywords
Cite
@article{arxiv.1012.4813,
title = {On the sign of the dilaton in the soft wall models},
author = {Andreas Karch and Emanuel Katz and Dam T. Son and Mikhail A. Stephanov},
journal= {arXiv preprint arXiv:1012.4813},
year = {2015}
}
Comments
10 pages