Gauge-Higgs EW and Grand Unification

Abstract

4D Higgs field is identified with the extra-dimensional component of gauge potentials in the gauge-Higgs unification scenario. $SO(5)\times U(1)$ gauge-Higgs EW unification in the Randall-Sundrum warped space is successful at low energies. The Higgs field appears as an Aharonov-Bohm phase ${\theta }_H$ in the fifth dimension. Its mass is generated at the quantum level and is finite. The model yields almost the same phenomenology as the standard model for ${\theta }_H<0.1$, and predicts $Z^{\prime }$ bosons around 6 - 10 TeV with very broad widths. The scenario is genelarized to $SO(11)$ gauge-Higgs grand unification. Fermions are introduced in the spinor and vector representations of $SO(11)$. Proton decay is naturally forbidden.

arXiv comment13 pages, Proceeding for "Conference on New Physics at the Large Hadron Collider", NTU, Singapore, 29 Feburuary - 4 March 2016

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• Collider signals of $W^{\prime }$ and $Z^{\prime }$ bosons in the gauge-Higgs unification
• Special Grand Unification
• Family Unification in Special Grand Unification
• String-Inspired Special Grand Unification
• Quantum baryon number fluctuations in subsystems of a hot and dense relativistic gas of fermions
• Minimal SU(6) Gauge-Higgs Grand Unification
• Hosotani mechanism in the "color"-singlet plasma
• The Gluon Exchange Model in proton-nucleus collisions