Semi-leptonic and Non-leptonic $B$ meson decays to charmed mesons

TL;DR

This paper investigates semi-leptonic and non-leptonic B meson decays to charmed mesons, estimating form factors and comparing theoretical predictions with experimental data for branching ratios, CP asymmetries, and polarization fractions.

Contribution

It provides new estimates of B to D(*) form factors using the Salpeter method and compares various theoretical approaches with experimental results.

Findings

Branching ratio estimates agree with experimental data.

CP asymmetries and polarization fractions are analyzed and compared.

The Salpeter method effectively estimates form factors for B decays.

Abstract

We study the semi-leptonic and non-leptonic $B$ weak decays which are governed by the $B\rightarrow D^{(*)}$ transitions. The branching ratios, CP asymmetries (CPA) and polarization fractions (FA) of non-leptonic decays are investigated in the factorization approximation. The $B\rightarrow D^{(*)}$ form factors are estimated in the Salpeter method. Our estimation on branching ratios generally agree with the existent experimental data. For CPA and polarizations, comparisons among the FA results, the perturbative QCD predictions and experimental data are made.