Study of exclusive nonleptonic decay of Bₛ⁰→ J/ψ Kₛ

We study the exclusive two-body nonleptonic Bₛ⁰→ J/ψ Kₛ decay by considering the tree-level diagram within the framework of relativistic independent quark (RIQ) model based on a flavor-independent interaction potential in scalar-vector harmonic form. Using the factorization approximation, we calculate the weak form factors from the overlapping integrals of meson wave functions obtained in the RIQ model and predict the BF for Bₛ⁰→ J/ψ Kₛ decays in reasonable agreement with existing experimental result. Branching fraction of this decay is found to be within the detection ability of the LHCb Collaboration and can also be compared with the future theoretical predictions. We predict the ratio: R( B(Bₛ⁰→ J/ψ Kₛ) B(Bd⁰→ J/ψ Kₛ)) which is in broad agreement with the data from LHCb Collaborations. This results indicate that the present approach works well in the description of exclusive nonleptonic Bₛ⁰→ J/ψ Kₛ decays within the framework of the RIQ model.