Phenomenology of Scalar Leptoquarks: Neutrino Mass, \(g-2\) , and B-Anomalies

We consider two BSM scenarios with scalar leptoquarks (LQ), motivated by neutrino mass, muon \((g-2)\) , and anomalies in B-decay ratios. A combination of a singlet and a doublet scalar LQ can generate one-loop Majorana neutrino mass, and contribute to the observed muon and electron \((g-2)\) values, while satisfying bounds from lepton flavour violating decays. A carefully chosen parameter space in this model carries discovery and discernability potential at the LHC/FCC from pair production, with different finalstates. On the other hand, extending the SM with a singlet and a triplet scalar LQ separately can categorically explain the observed tensions in B-decay ratios. With a minimal set of couplings, the singlet contributes to \(R(D)/R(D*)\) , and the triplet to \(R(K)/R(K*)\) . The Yukawa couplings can be probed from single production of the LQs at the LHC/FCC, and their reach for a range of mass is studied.