Study of $B_{c}^{-}$ ${\to}$ $J/{\psi}{\pi}^{-}$, ${\eta}_{c}{\pi}^{-}$ Decays with QCD Factorization

TL;DR

This paper investigates the decay processes of Bc mesons into J/psi or eta_c with a pion using QCD factorization, calculating branching ratios and considering charm quark mass effects.

Contribution

It applies the QCD factorization approach to Bc decays, including charm quark mass effects, and computes branching ratios with the asymptotic pion distribution.

Findings

Mass effect on branching ratios is small.

Branching ratios are calculated using asymptotic pion distribution.

QCD factorization effectively describes Bc decay processes.

Abstract

The $B_{c}$ ${\to}$ $J/{\psi}{\pi}$, ${\eta}_{c}{\pi}$ decays are studied in the scheme of the QCD factorization approach. The branching ratios are calculated with the asymptotic distribution amplitude of the pion. The charm quark mass effect is considered. We find that the mass effect on the branching ratios is small.