Angular distribution analysis of B to J/psi K^(*) and resolving discrete ambiguities in the determination of φ₁

We discuss the angular distribution analysis of $B\to J/\psi K^{*}$ decays and a way to resolve discrete ambiguites in the determination of the unitary triangle $\phi_1(=\beta)$. We study the status of factorization hypothesis in the color-suppressed B meson decays: $B\to J/\psi K^{(*)}$ within the general factorization approach and QCD-factorization method.