2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148930Available experimental data on decay rate and polarization are used to investigate non-factorization contribution to processes of the kind $B \rightarrow K ψ$, and $B \rightarrow K^* ψ$ using five theoretical models for the formfactors. Using the knowledge on non-factorization gained from $B$ decays we study the processes $B_s \rightarrow (η', η) ψ$, and $B_s \rightarrow ϕψ$ where experimental data are very limited.16 pages, Latex, 8 figuresHigh Energy Physics - Phenomenologytext