Gauge-Higgs Grand Unification

TL;DR

This paper proposes a grand unification model based on $SO(11)$ gauge symmetry in warped space, breaking down to the Standard Model through boundary conditions and the Hosotani mechanism, with natural proton decay suppression.

Contribution

It introduces a novel $SO(11)$ gauge-Higgs grand unification model in warped space with specific symmetry breaking and fermion embedding, advancing unification theories.

Findings

Successful symmetry breaking to the Standard Model

Natural suppression of proton decay

Inclusion of quarks and leptons in a single multiplet

Abstract

$SO(11)$ gauge-Higgs grand unification in the Randall-Sundrum warped space is proposed. Orbifold boundary conditions and one brane scalar field reduce $SO(11)$ to the standard model symmetry, which is further broken to $SU(3)_C \times U(1)_{EM}$ by the Hosotani mechanism. In a minimal model quarks and leptons are contained in a multiplet in ${\bf 32}$ of $SO(11)$ in each generation. Proton decay is naturally suppressed by a conserved fermion number.