Unification of Gauge, Higgs and Matter in Extra Dimensions
نویسندگان
چکیده
We consider the unification of gauge, Higgs as well as the matter fields in a 6D N= 2 supersymmetric SU(8) gauge theory. The gauge symmetry SU(8) is broken down to SU(4)× SU(2)L × SU(2)R × U(1) in 4D through T 2/Z6 orbifold compactification, and the theory is reduced to 4D N = 1 supersymmetric Pati-Salam model. The electroweak Higgs fields as well as the third family of fermions are unified in the 6D N = 2 gauge multiplet. The 6D bulk gauge interaction provides both gauge and Yukawa interactions for the third family predicting α1 = α2 = α3 = αt = αb = ατ at the unification scale, in good agreement with experiment. Incorporation of the first and second family as well as other orbifolds are also briefly discussed. On a leave of absence from: Andronikashvili Institute of Physics, GAS, 380077, Tbilisi, Georgia. email: [email protected] email: [email protected] email: [email protected]
منابع مشابه
Holographic Methods and Gauge-Higgs Unification in Flat Extra Dimensions
I review the holographic techniques used to efficiently study models with Gauge-Higgs Unification (GHU) in one extra dimension. The general features of GHU models in flat extra dimensions are then reviewed, emphasizing the aspects related to electroweak symmetry breaking. Two potentially realistic models, based on SU(3) and SO(5) electroweak gauge groups, respectively, are constructed.
متن کاملGauge Coupling Unification with Extra Dimensions and Correction due to Higher Dimensional Operators
We study the gauge coupling unification with extra dimensions. We take into account corrections due to the higher dimensional operators. We show the prediction of α3(MZ) is sensitive to such corrections, even if c < Φ > /M = O(0.01). We also discuss the b − τ Yukawa unification. Partially supported by the Academy of Finland (no. 44129). Recently, theories with large extra dimensions have been s...
متن کاملCoupling Unifications in Gauge-Higgs Unified Orbifold Models
Supersymmetric gauge theories, in higher dimensions compactified in an orbifold, give a natural framework to unify the gauge bosons, Higgs fields and even the matter fields in a single multiplet of the unifying gauge symmetry. The extra dimensions and the supersymmetry are the two key ingredients for such an unification. In this work, we investigate various scenarios for the unification of the ...
متن کاملModel Building with Gauge – Yukawa Unification
In supersymmetric theories with extra dimensions, the Higgs and matter fields can be part of the gauge multiplet, so that the Yukawa interactions can arise from the gauge interactions. This leads to the possibility of gauge–Yukawa coupling unification, gi = yf , in the effective four dimensional theory after the initial gauge symmetry and the supersymmetry are broken upon orbifold compactificat...
متن کاملDivergences and Symmetries in Higgs-gauge Unification Theories
In theories with extra dimensions the Standard Model Higgs field can be identified with the internal components of higher-dimensional gauge fields (Higgs-gauge unification). The higherdimensional gauge symmetry prevents the Higgs mass from quadratic divergences, but at the fixed points of the orbifold this symmetry is broken and divergences can arise if U(1) subgroups are conserved. We show tha...
متن کامل