Unitarity Constraints on non-minimal Universal Extra Dimensional Model
Abstract
We examine the unitarity constraints in gauge and scalar sectors of non-minimal Universal Extra Dimensional model. We show that some of the tree-level two-body scattering amplitudes in gauge and scalar sectors do not respect partial wave unitarity. Unitarity analysis of this model leads to an upper bound on corresponding boundary-localized (BLT) parameter which depends on the maximum number of Kaluza-Klein (KK) mode considered in the analysis. This upper bound of the relevant BLT parameter decreases with the increasing KK-modes. The results are, in effect, independent of the inverse of compactifiaction radius. The upper bound on BLT parameter also results in a lower bound on gauge and scalar KK-masses.
Cite
@article{arxiv.1604.02481,
title = {Unitarity Constraints on non-minimal Universal Extra Dimensional Model},
author = {Tapoja Jha},
journal= {arXiv preprint arXiv:1604.02481},
year = {2018}
}
Comments
40 pages, 11 figures and 3 tables; added new discussions and figures; typos fixed; references added; matches published version