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

Abstract
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+, K¯0K+, K¯0K*+, K¯*0K+, and K¯*0K*+ decays. We point out that the experimental observation B(Ds+→φρ+)≈B(Ds+→K¯*0K*+) is rather puzzling.