Cabibbo-angle-favored two-body hadronic decays of Ds+ in the factorization scheme

In this paper we study two-body Cabibbo-angle-favored decays of Ds+ in the factorization scheme using two quark models: that of Bauer, Stech, and Wirbel and that of Isgur, Scora, Grinstein, and Wise. We discuss Ds+→(η,η')π+, (η,η')ρ+, φπ+, φρ+, bar K0K+, bar K0K*+, bar K*0K+, and bar K*0K*+ decays. We point out that the experimental observation B(Ds+→φρ+)∼B(Ds+→ bar K*0K*+) is rather puzzling