Several anomalies in the semileptonic B-meson decays such as $\mathcal{ R}(D^{ (*)})$ have been reported by $BABAR$, Belle, and LHCb collaborations recently. In this paper, we investigate the contributions of the charged Higgs bosons from the 3-3-1 models to the $\mathcal{ R}(D^{ (*)})$ anomalies. We find that, in a wide range of parameter space, the 3-3-1 models might give reasonable explanations to the $\mathcal{ R}(D^{ (*)})$ anomalies and other analogous anomalies of the B meson's semileptonic decays.
Categories: hep-ph