Left-right symmetry in 5D and neutrino mass in TeV scale gravity models

Abstract

We construct a left-right symmetric model based on the gauge group $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_{B-L}$ in five dimensions where both the gauge bosons and fermions reside in all five dimensions. The orbifold boundary conditions are used not only to break the gauge symmetry down to $SU(2{)}_L\times U(1{)}_Y\times U(1{)}_{Y^{\prime }}$ but also to ``project'' the right handed neutrino out of the zero mode part of the spectrum, providing a new way to understand the small neutrino masses without adding (singlet) bulk neutrinos. This formulation of the left-right model has also two new features: (i) it avoids most existing phenomenological bounds on the scale of the right handed $W_R$ boson allowing for the possibility that the right handed gauge bosons could have masses under a TeV, and (ii) it predicts a stable lepton with mass of order of the inverse radius of the fifth dimension.

20 pages; some new materials and references added

References in corpus (8)

• The Structure of GUT Breaking by Orbifolding
• Proton Stability in Six Dimensions
• Stringent neutron-star limits on large extra dimensions
• Models of Scherk-Schwarz Symmetry Breaking in 5D: Classification and Calculability
• Anomalies and Fermion Content of Grand Unified Theories in Extra Dimensions
• Orbifold Breaking of Left-Right Gauge Symmetry
• b -> s gamma in the left-right supersymmetric model
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Cited by in corpus (20)

• Unified Models of Neutrinos, Flavour and CP Violation
• An Introduction to Extra Dimensions
• Unification of Gauge, Higgs and Matter in Extra Dimensions
• Neutrino mass, proton decay and dark matter in TeV scale universal extra dimension models
• Gauge Higgs Unification in the Left-Right Model
• Radion Cosmology in Theories with Universal Extra Dimensions
• Physics of Neutrino Mass
• Extra Dimensions at the Weak Scale and Deviations from Newtonian Gravity
• Orbifold Breaking of 3-3-1 Model
• The Weak Mixing Angle From TeV Scale Quark-Lepton Unification
• Gauge Theories on an Interval: Unitarity without a Higgs
• Lepton Masses and Mixing in a Left-Right Symmetric Model with a TeV-scale Gravity
• Suppressing Proton Decay By Separating Quarks And Leptons
• LEP Data and the Stability of the Potential Confront the mSUGRA Model
• Orbifold Reduction Of The Quark-Lepton Symmetric Model
• Electroweak-Higgs Unification and the Higgs Boson Mass
• Quark-Lepton Symmetry In Five Dimensions
• Radion stabilization from the vacuum on flat extra dimensions
• Combining Left-Right And Quark-Lepton Symmetries In 5D
• Left-right symmetry, orbifold $S^1/Z_2$, and radiative breaking of $U(1{)}_{\mathrm{R}}\times U(1{)}_{\mathrm{B}-\mathrm{L}}$