New dimensions from gauge-Higgs unification

Abstract

The Higgs boson is unified with gauge fields in the gauge-Higgs unification. The $SO(5) \times U(1)$ gauge-Higgs electroweak unification in the Randall-Sundrum warped space yields almost the same phenomenology at low energies as the standard model, and gives many predictions for the Higgs couplings and new $W', Z'$ bosons around $6 \sim 8$ TeV, which can be tested at 14 TeV LHC. The gauge-Higgs grand unification is achieved in $SO(11)$ gauge theory. It suggests the existence of the sixth dimension (GUT dimension) in addition to the fifth dimension (electroweak dimension). The proton decay is naturally suppressed in the gauge-Higgs grand unification.Comment: 13 pages. To appear in the Proceedings of "Corfu Summer Institute 2016", and in the Proceedings of "6th CST-MISC Joint Symposium on Particle Physics -- from Spacetime Dynamics to Phenomenology --'. 6 figures are include