Low Scale Quark-Lepton Unification

TL;DR

This paper proposes a low-scale quark-lepton unification model based on a specific gauge group, predicting scalar leptoquarks detectable at colliders and explaining neutrino masses via the inverse see-saw mechanism.

Contribution

It introduces a simple low-energy unification theory with testable predictions and a novel neutrino mass generation method.

Findings

Predicts scalar leptoquarks accessible at the LHC

Provides a mechanism for light neutrino masses without fine tuning

Unifies quarks and leptons at a low energy scale

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.