Investigation of rare semileptonic decays with non-universal Z′ effect

Abstract

We analyze different decay observables of semileptonic decays , such as the branching ratio, forward-backward asymmetry, polarization fraction, and lepton polarization asymmetry in the non-universal model. We further study the dependence of the branching fraction to the new model parameters and find that the values of different decay parameters increase in the model, which indicates a possible approach for the search of new physics as well as for the unknown phenomena of the charm B meson.