Resonance spectrum of a bulk fermion on branes
Abstract
It is known that there are two mechanisms for localizing a bulk fermion on a brane, one is the well-known Yukawa coupling and the other is the new coupling proposed in [Phys. Rev. D 89, 086001 (2014)]. In this paper, we investigate localization and resonance spectrum of a bulk fermion on the same branes with the two localization mechanisms. It is found that both the two mechanisms can result in a volcano-like effective potential of the fermion Kaluza-Klein modes. The left-chiral fermion zero mode can be localized on the brane and there exist some discrete massive fermion Kaluza-Klein modes that quasilocalized on the brane (also called fermion resonances). The number of the fermion resonances increases linearly with the coupling parameter.
Keywords
Cite
@article{arxiv.1601.05852,
title = {Resonance spectrum of a bulk fermion on branes},
author = {Yu-Peng Zhang and Yun-Zhi Du and Wen-Di Guo and Yu-Xiao Liu},
journal= {arXiv preprint arXiv:1601.05852},
year = {2016}
}
Comments
14 pages, 18 figures