Low-energy phenomenology of scalar leptoquarks at one-loop accuracy

We perform a complete study of the low-energy phenomenology of S-1 and S-3 leptoquarks, aimed at addressing the observed deviations in B-meson decays and the muon magnetic dipole moment. Leptoquark contributions to observables are computed at one-loop accuracy in an effective field theory approach, using the recently published complete one-loop matching of these leptoquarks to the Standard Model effective field theory. We present several scenarios, discussing in each case the preferred parameter space and the most relevant observables.

Automated summary

In this study, we conducted a comprehensive examination of the low-energy phenomenology of S-1 and S-3 leptoquarks, focusing on their impact on deviations observed in B-meson decays and the muon magnetic dipole moment. By calculating leptoquark contributions to observables at one-loop accuracy using an effective field theory approach, we presented various scenarios and discussed the preferred parameter space and most relevant observables in each case.