Hunting for the hidden-charm molecular states with strange quarks in B and Bs decays

In the present work, we investigate the productions of the molecular states composed of D-s(()*()) (D) over bar (()(s)*()) and D-s(()*()) (D) over bar (()(s)*()) in the B and Bs 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 quarks in the future experiments at Belle II and LHCb.

Automated summary

In this study, the production of molecular states composed of D-s(()*()) (D) over bar (()(s)*()) and D-s(()*()) (D) over bar (()(s)*()) in B and Bs decays is investigated using an effective Lagrangian approach. The branching ratios are estimated in terms of the model parameter alpha and the binding energy Delta E. The results show that the branching fractions are of the order of 10(-4) and the relative ratios are weakly dependent on the model parameter alpha and the binding energy Delta E. The predicted ratios are useful for the search of hidden-charm molecular states with strange quarks in future experiments at Belle II and LHCb.