B^0-\bar B^0 Mixing in Gauge-Higgs Unification
High Energy Physics - Phenomenology
2012-09-11 v2
Abstract
We discuss flavor mixing and resulting Flavor Changing Neutral Current (FCNC) in a five dimensional SU(3)_color \otimes SU(3) \otimes U'(1) gauge-Higgs unification. Flavor mixing is realized by the fact that the bulk and brane localized mass terms are not diagonalized simultaneously. As the concrete FCNC processes, we calculate the rate of B^0_d-\bar B^0_d mixing and B^0_s-\bar B^0_s mixing due to the exchange of non-zero Kaluza-Klein gluons at the tree level. We obtain a lower bound on the compactification scale of order O(TeV) by comparing our prediction on the mass difference of neutral B meson with the recent experimental data.
Keywords
Cite
@article{arxiv.1112.6062,
title = {B^0-\bar B^0 Mixing in Gauge-Higgs Unification},
author = {Yuki Adachi and Nobuaki Kurahashi and Nobuhito Maru and Kazuya Tanabe},
journal= {arXiv preprint arXiv:1112.6062},
year = {2012}
}
Comments
18 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1103.5980 [hep-ph]