Grand Gauge-Higgs Unification
High Energy Physics - Phenomenology
2011-10-11 v2
Abstract
We propose a novel way to break grand unified gauge symmetries via the Hosotani mechanism in models that can accommodate chiral fermions. Adjoint scalar fields are realized through the so-called diagonal embedding method which is often used in the heterotic string theory. We calculate the one-loop effective potential of the adjoint scalar field in a five dimensional model compactified on an S^1/Z_2 orbifold, as an illustration. It turns out that the potential is basically the same as the one in an S^1 model, and thus the results in literatures, in addition to the chiral fermions, can be realized easily.
Cite
@article{arxiv.1103.1234,
title = {Grand Gauge-Higgs Unification},
author = {Kentaro Kojima and Kazunori Takenaga and Toshifumi Yamashita},
journal= {arXiv preprint arXiv:1103.1234},
year = {2011}
}
Comments
5 pages, 1 figure, minor improvements (especially in Eq.(4)), references added and typos corrected