# Possibility of searching for $B_{c}^{\ast}$ ${\to}$ $B_{u,d,s}V$, $B_{u,d,s}P$ decays

## TL;DR

This paper explores the potential to detect specific $B_{c}^{ ext{*}}$ meson decays into $B_{u,d,s}$ mesons with vector or pseudoscalar mesons, using QCD factorization, and finds some decay modes with measurable branching ratios.

## Contribution

It provides theoretical predictions for $B_{c}^{ ext{*}}$ decay branching ratios using QCD factorization and the Wirbel-Stech-Bauer model, highlighting potentially observable decay channels.

## Key findings

- Branching ratios for $B_{c}^{ ext{*}} \to B_{s}\rho$ and $B_{s}\pi$ can reach ${\cal O}(10^{-7})$
- Some decay modes are potentially measurable at future LHC experiments
- The study offers theoretical support for experimental searches of $B_{c}^{\text{*}}$ decays.

## Abstract

The $B_{c}^{\ast}$ ${\to}$ $B_{u,d,s}V$, $B_{u,d,s}P$ decays are investigated with the QCD factorization approach, where $V$ and $P$ denote the ground $SU(3)$ vector and pseudoscalar mesons, respectively. The $B_{c}^{\ast}$ ${\to}$ $B_{u,d,s}$ transition form factors are calculated with the Wirbel-Stech-Bauer model. It is found that branching ratios for the color-favored and Cabibbo-favored $B_{c}^{\ast}$ ${\to}$ $B_{s}{\rho}$, $B_{s}{\pi}$ decays can reach up to ${\cal O}(10^{-7})$, which might be measurable in the future LHC experiments.