Low Scale Quark-Lepton Unification

Abstract

We investigate the possibility that quarks and leptons are unified at a low energy scale much smaller than the grand unified scale. A simple theory for quark-lepton unification based on the gauge group SU(4)_C X SU(2)_L X U(1)_R is proposed. This theory predicts the existence of scalar leptoquarks which could be produced at the Large Hadron Collider. In order to have light neutrinos without fine tuning, their masses are generated through the inverse see-saw mechanism.

minor corrections, added references, version published in Physical Review D; v3 typo corrected in eq.25

References in corpus (6)

• Flavor Changing Neutral Currents, an Extended Scalar Sector, and the Higgs Production Rate at the LHC
• Phenomenology of scalar leptoquarks
• Minimal Flavour Violation for Leptoquarks
• Mass limits for scalar and gauge leptoquarks from $K_L^0\to e^{\mp }{\mu }^{\pm },B^0\to e^{\mp }{\tau }^{\pm }$ decays
• Leptoquarks and Neutrino Masses at the LHC
• Leptoquarks decaying to a top quark and a charged lepton at hadron colliders

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• LHC bounds on Lepton Number Violation mediated by doubly and singly-charged scalars
• A unified leptoquark model confronted with lepton non-universality in $B$-meson decays
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• Flavor Non-universal Pati-Salam Unification and Neutrino Masses
• Leptoquarks and Matter Unification: Flavor Anomalies and the Muon $g-2$
• Vector leptoquark mass limits and branching ratios of $K_L^0,B^0,B_s\to l_i^{+}{l}_j^{-}$ decays with account of fermion mixing in leptoquark currents
• Scalar Leptoquarks, Baryon Number Violation and Pati-Salam Symmetry
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• Classification of Left-Right Symmetric Heterotic String Vacua
• Finite Family Groups for Fermionic and Leptoquark Mixing Patterns
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• Classification of SU(4) X SU(2) X U(1) Heterotic-String Models
• Unification and Local Baryon Number
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• A neutrino window to scalar leptoquarks: from low energy to colliders
• Finite Naturalness and Quark-Lepton Unification
• All possible first signals of gauge leptoquark in quark-lepton unification and beyond
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