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.
Highlights
It is well-known that in spite of having enormous successful explanation of many experimental observations, the standard model (SM) carries some certain lacunae
Due to the deficit in SM theory, these anomalies drive us to search for new physics (NP)
After the CLEO observation of transition [6] rare decays of mesons become the main topic of interest
Summary
It is well-known that in spite of having enormous successful explanation of many experimental observations, the standard model (SM) carries some certain lacunae. In the relativistic quark model, quasipotential approach has been considered where a meson is described as a bound state with a wave function consisting of the solution of Schrodinger type quasipotential equation. The numerical calculations are based on these relativistic wave functions which are obtained previously from meson mass spectra Another advantage of this approach is that the electroweak matrix elements between meson states with a consistent relativistic effect allow to determine the form factor dependence on the momentum transfer. This dependence is reliable in whole accessible kinematic range without using any ad hoc assumption and extrapolation.
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