$SU(2{)}_L$ Doublet Vector Dark Matter from Gauge-Higgs Unification

Abstract

A new vector dark matter (DM) scenario in the context of the gauge-Higgs unification (GHU) is proposed. The DM particle is identified with an electric-charge neutral component in an $SU(2{)}_L$ doublet vector field with the same quantum number as the Standard Model Higgs doublet. Since such an $SU(2{)}_L$ doublet vector field is incorporated in any models of the GHU scenario, it is always a primary and model-independent candidate for the DM in the scenario. The observed relic density is reproduced through a DM pair annihilations into the weak gauge bosons with a TeV-scale DM mass, which is nothing but the compactification scale of extra-dimensions. Due to the higher-dimensional gauge structure of the GHU scenario, a pair of the DM particles has no direct coupling with a single $Z$-boson/Higgs boson, so that the DM particle evades the severe constraint from the current direct DM search experiments.

10 pages, The model corrected so as to incorporate KK-parity in version 2. The discussion on the lightest KK particle mass corrected (v3)

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Cited by in corpus (9)

• GUT inspired $SO(5)\times U(1)\times SU(3)$ gauge-Higgs unification
• CKM matrix and FCNC suppression in $SO(5)\times U(1)\times SU(3)$ gauge-Higgs unification
• A model of electroweakly interacting non-abelian vector dark matter
• Fermion Mass Hierarchy in Grand Gauge-Higgs Unification
• Dark Matter from a Vector Field in the Fundamental Representation of $SU(2{)}_L$
• DAMPE Excess from Leptophilic Vector Dark Matter: Model Independent Approach
• Vector Boson Dark Matter From Trinification
• Vector Dark Matter from the 5-Dimensional Representation of $SU(2{)}_L$
• Gamma-ray line from electroweakly interacting non-abelian spin-1 dark matter