About gauge invariance in compactified extra dimensions
Abstract
Gauge theories formulated in a space-time manifold that includes compact extra dimensions can show a nontrivial gauge structure. Depending on whether the gauge parameters propagate or not in the extra dimensions, two different Kaluza--Klein theories can arise when the extra dimensions are compactified. A comparison between these two possibilities, in the context of a five dimensional theory, is presented from both the theoretical and phenomenological viewpoints. The phenomenological implications of these theories are contrasted by discussing the one--loop decay of the Higgs boson into two photons. It is shown that the amplitude for this decay differs substantially from one approach to the other and that such a difference is intimately related to gauge invariance.
Cite
@article{arxiv.1105.4625,
title = {About gauge invariance in compactified extra dimensions},
author = {H. Novales-Sánchez and J. J. Toscano},
journal= {arXiv preprint arXiv:1105.4625},
year = {2015}
}
Comments
5 pages, 1 figure