Selected decays of Bₛ meson in covariant confined quark model

We present a study of various Bₛ B s meson decays, including hadronic and semileptonic final states with different spins and diagram topologies. The covariant confined quark model is employed to describe hadronic effects, and our analysis serves as a broad test of the current understanding of the underlying dynamics within the Standard Model. The level of agreement with experimental data varies across channels: it is good for the semileptonic decays Bₛ⁰→ Dₛ⁻μ ⁺ν μ B s 0 → D s - μ + ν μ and Bₛ⁰→ K⁻μ ⁺ν μ B s 0 → K - μ + ν μ ; acceptable for the hadronic modes Bₛ⁰→ Dₛ⁻D⁺ B s 0 → D s - D + and Bₛ⁰→ K⁻π ⁺ B s 0 → K - π + ; marginal for Bₛ⁰→ Dₛ⁻π ⁺ B s 0 → D s - π + , Bₛ⁰→ Dₛ⁻ρ ⁺ B s 0 → D s - ρ + , and Bₛ⁰→ φ \,J/ψ B s 0 → ϕ <mml:m