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

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.

Comments: 19 pages, 7 figures. v2: Section 4 has been replaced and new references have been added. v3: New appendix and references added, to appear in PRD