Ghosts- and Tachyon-Free Regions of the Randall-Sundrum Model Parameter Space
High Energy Physics - Phenomenology
2018-08-15 v2
Abstract
Model building within the Randall-Sundrum (RS) framework generally involves placing the Standard Model fields in the bulk. Such fields may possess non-zero values for their associated brane-localized kinetic terms (BLKTs) in addition to possible bulk mass parameters. In this paper we clearly identify the regions of the RS model parameter space where the presence of bulk mass terms and BLKTs yield a setup which is free from both ghost and tachyon instabilities. Such physically acceptable parameter space regions can then be used to construct realistic and phenomenologically viable RS models.
Keywords
Cite
@article{arxiv.1802.05731,
title = {Ghosts- and Tachyon-Free Regions of the Randall-Sundrum Model Parameter Space},
author = {George N. Wojcik and JoAnne L. Hewett and Thomas G. Rizzo},
journal= {arXiv preprint arXiv:1802.05731},
year = {2018}
}
Comments
Latex, 30 pages, 2 figures