Gauge-Higgs Seesaw Mechanism in Six-Dimensional Grand Unification

Abstract

$SO(11)$ gauge-Higgs grand unification is formulated in the six-dimensional hybrid warped space in which the fifth and sixth dimensions play as the electroweak and grand-unification dimensions. Fermions are introduced in $32$, $11$ and $1$ of $SO(11)$. Small neutrino masses naturally emerge as a result of a new seesaw mechanism in the gauge-Higgs unification which is characterized by a $3\times 3$ mass matrix.

Comments: 10 pages, no tables, no figures