Quark-Lepton Unification Signatures

TL;DR

This paper explores collider signatures of a minimal quark-lepton unification model near the electroweak scale, predicting new particles and decay patterns, and discusses experimental detection strategies at the LHC.

Contribution

It introduces a low-scale unification framework with specific new particles and decay modes, and analyzes their collider signatures and current experimental constraints.

Findings

Dominant leptoquark decays involve third-generation fermions.

The model predicts specific signatures detectable at the LHC.

Current measurements place limits on the model's parameter space.

Abstract

We investigate the collider signatures of the minimal framework for quark-lepton unification at a scale not far from the electroweak symmetry breaking scale. This theory predicts a rich spectrum of new fields, including one vector leptoquark, two scalar leptoquarks, a color-octet scalar, and an additional Higgs doublet. Neutrino masses are generated via the inverse seesaw mechanism, facilitating viable matter unification at the low scale. We find that this theory predicts that in many cases the dominant leptoquark decays are to the third generation Standard Model quarks and leptons. We identify key experimental signatures at the Large Hadron Collider, evaluate and discuss the limits from current measurements, and outline potential strategies for probing this theory in the near future.