Hunting for the hidden-charm molecular states with strange quark in $B$ and $B_s$ decays

TL;DR

This paper predicts the production rates of hidden-charm molecular states with strange quarks in B and Bs decays, providing estimates for branching ratios and ratios to guide future experimental searches at Belle II and LHCb.

Contribution

It introduces a theoretical approach to estimate production rates of specific molecular states in B decays, aiding experimental searches with model-independent ratio predictions.

Findings

Branching ratios are around 10^{-4}.

Ratios are weakly dependent on model parameters.

Predictions assist future experimental searches.

Abstract

In the present work, we investigate the productions of the molecular states composed of $D^{(*)}_s \bar{D}^{(*)}$ and $D^{(*)}_s \bar{D}^{(*)}_s$ in the $B$ and $B_s$ decays by using an effective Lagrangian approach. The branching ratios in terms of the model parameter $\alpha$ and the binding energy $\Delta E$ are estimated. Our estimations indicate that the branching fractions are of the order of $10^{-4}$ and the relative ratios are very weakly dependent on the model parameter $\alpha$ and the binding energy $\Delta E$. The predicted ratios are helpful for searching the hidden-charm molecular states with strange quark in the future experiments at Belle II and LHCb.