Neutral SU(2) Gauge Extension of the Standard Model and a Vector-Boson Dark-Matter Candidate

Understand

If the standard model of particle interactions is extended to include a neutral SU(2)_N gauge factor, with SU(3)_C x SU(2)_L x U(1)_Y x SU(2)_N embedded in E_6 or [SU(3)]^3, a conserved generalized R parity may appear.

• As a result, we have the first example of a possible dark-matter candidate X_1 which is a non-Abelain vector boson.
• Using current data, its mass is predicted to be less than about 1 TeV.
• The associated Z' of this model, as well as some signatures of the Higgs sector, should then be observable at the LHC (Large Hadron Collider).