The leptoquarks predicted by the model of Pati-Salam type gained a lot of attention in recent years as they might serve as a possible explanation of the B-mesons anomalies. The current measurements put stringent lower bound on the gauge leptoquark mass which remains an unknown value.
By scan and by analytic considerations, we have determined which mesonic decays are the most relevant for future searches for the gauge leptoquark existence and what is the lowest possible gauge leptoquark mass compatible with present experimental data.