The semileptonic form factors of B and D mesons in the Quark Confinement Model

TL;DR

This paper calculates semileptonic form factors of B and D mesons using the quark confinement model, incorporating heavy meson structure and finite quark mass effects, achieving good agreement with experimental data.

Contribution

It introduces the first calculation of form factors considering heavy meson vertex structure and finite quark mass effects within the quark confinement model.

Findings

Results agree well with experimental data

Inclusion of heavy meson structure improves accuracy

Finite quark mass effects are significant

Abstract

The form factors of the weak currents, which appear in the semileptonic decays of the heavy pseudoscalar mesons, are calculated within the quark confinement model by taking into account, for the first time, the structure of heavy meson vertex and the finite quark mass contribution in the heavy quark propagators. The results are in quite good agreement with the experimental data.