Decays $B\rightarrow D_{\left(s\right)}^{\left(*\right)}h$ ($h=\pi,\rho$) in confined covariant quark model

TL;DR

This paper analyzes B meson decays into D mesons and light hadrons using a covariant quark model, finding that theoretical branching ratios tend to be higher than experimental data, consistent with prior studies.

Contribution

The study applies the confined covariant quark model with naive factorization to B decay processes, highlighting systematic overestimations of branching fractions.

Findings

Theoretical branching ratios are systematically higher than experimental values.

The behavior aligns with previous findings in similar decay processes.

Abstract

Decay processes $B\rightarrow D_{\left(s\right)}^{\left(*\right)}h$ ($h=\pi,\rho$) are studied in the framework of the confined covariant quark model using the na\"{i}ve factorization assumption. We observe that the theoretical results on branching fractions have tendency to systematically exceed the experimental numbers. Such a behavior has already been seen for similar processes by other authors.