The $B$-physics experiments at LHCb, BaBar and Belle hint towards deviations from Lepton Flavor Universality in both the tree-level and loop-induced $B$ meson semileptonic decays. We propose a leptoquark model with light right-handed neutrinos which can accommodate both $R_K^\mathrm{ exp}<R_K^\mathrm{ SM}$ and $R_{ D^{ (\ast)}}^\mathrm{ exp}>R_{ D^{ (\ast)}}^\mathrm{ SM}$. We discuss several of its predictions which can be tested in modern day experiments. We also comment on the recent finding at LHCb, namely $R_{ K^\ast}^{ \mathrm{ exp}}<R_{ K^\ast}^\mathrm{ SM}$.
Categories: hep-ph