Low-Scale SU(4)_W Unification

Abstract

We embed the minimal left-right model SU(2)_L*SU(2)_R* U(1)_{B-L} into an SU(4)_W gauge group, and break the unified group via five-dimensional S^1/(Z_2*Z_2) orbifolding. Leptons are fitted into SU(4)_W multiplets and located on a symmetry preserving O brane, while quarks are placed onto an O' brane where the symmetry is broken. This approach predicts \sin^2θ_W=0.25 for the weak mixing angle at tree level and leads to a rather low weakly (strongly) coupled unification scale of order 3*10^2 TeV (several TeV) with supersymmetry, or as low as several TeV in the non-supersymmetric case. Another symmetry breaking chain with the low-energy gauge group SU(2)_L*U(1)_{3R}*U(1)_{B-L} can also give rise to a weak mixing angle \sin^2θ_W=0.25 at tree level after gauge symmetry breaking by orbifolding. Such theories with low-scale unification have interesting phenomenological consequences.

Version in JHEP (discussions added)

References in corpus (30)

• Extra Spacetime Dimensions and Unification
• Grand Unification at Intermediate Mass Scales through Extra Dimensions
• Gauge Unification in Higher Dimensions
• Triplet-doublet Splitting, Proton Stability and Extra Dimension
• SU(5) Grand Unification in Extra Dimensions and Proton Decay
• The Standard Model from extra dimensions
• A Minimal S^1/(Z_2 x Z_2') Orbifold GUT
• Gauge Symmetry Reduction from the Extra Space $S^1/Z_2$
• TeV scale 5D $SU(3{)}_W$ unification and the fixed point anomaly cancellation with chiral split multiplets
• Higher dimensional supersymmetry in 4D superspace
• Soft Masses in Theories with Supersymmetry Breaking by TeV-Compactification
• The Structure of GUT Breaking by Orbifolding
• Split Multiplets, Coupling Unification and Extra Dimension
• Anomalies on Orbifolds
• No Parity Violation without R Parity Violation
• Anomalies in orbifold field theories
• Models of Scherk-Schwarz Symmetry Breaking in 5D: Classification and Calculability
• Softly Broken Supersymmetric Desert from Orbifold Compactification
• Gauge Higgs Unification in the Left-Right Model
• On Anomalies in Orbifold Theories
• GUT Breaking on $M^4\times T^2/(Z_2\times Z_2^{\prime })$
• N=2 Supersymmetric GUT Breaking on $T^2$ Orbifolds
• Exponentially Small Supersymmetry Breaking from Extra Dimensions
• The Weak Mixing Angle from an SU(3) Symmetry at a TeV
• Light Higgs Mass Bound in SUSY Left-Right Models
• Unification of Weak and Hypercharge Interactions at the TeV Scale
• Electroweak Unification into a Five-Dimensional SU(3) at a TeV
• Weak Mixing Angle and the SU(3)_C times SU(3) Model on M^4 times S^1/(Z_2 times Z_2')
• Anomalies on orbifolds with gauge symmetry breaking
• The SU(3)_C * SU(4)_W * U(1)_{B-L} Models with Left-Right Unification

Cited by in corpus (7)

• Collider signatures of mirror fermions in the framework of Left Right Mirror Model
• Scalar dark matter explanation of the DAMPE data in the minimal Left-Right symmetric model
• Flavor Structures of Quarks and Leptons from Flipped SU(5) GUT with $A_4$ Modular Flavor Symmetry
• Supersymmetry Breaking Scalar Masses and Trilinear Soft Terms From High-Dimensional Operators in E_6 SUSY GUT
• Natural SUSY from SU(5) Orbifold GUT
• Realistic Flipped SU(5) from Orbifold SO(10)
• SU(7) Unification of SU(3)_C*SU(4)_W* U(1)_{B-L}