Leptoquarks and Matter Unification: Flavor Anomalies and the Muon $g-2$

TL;DR

This paper proposes a minimal low-scale quark-lepton unification model featuring leptoquarks, aiming to explain flavor anomalies such as the LHCb $ ext{R}_K$ measurement and the muon $g-2$ discrepancy.

Contribution

It introduces a novel low-scale unification framework with specific leptoquark properties that address current flavor anomalies and the muon magnetic moment.

Findings

Leptoquarks in the model can account for the $ ext{R}_K$ anomaly.

The model provides a potential explanation for the muon $g-2$ discrepancy.

Predictions for meson decay processes are consistent with experimental data.

Abstract

We discuss the minimal theory for quark-lepton unification at the low scale. In this context, the quarks and leptons are unified in the same representations and neutrino masses are generated through the inverse seesaw mechanism. The properties of the leptoquarks predicted in this theory are discussed in detail and we investigate the predictions for the leptonic and semi-leptonic decays of mesons. We study the possibility to explain the current value of $\mathcal{R}_K$ reported by the LHCb collaboration and the value of the muon anomalous magnetic moment reported by the Muon $g-2$ experiment at Fermilab.