V decays in the perturbative QCD approach

Two-body non-leptonic charmed decays B(s) → D(s)P , D (s)P , D(s)V and D (s)V are analyzed in perturbative QCD approach, where P and V denote the light pseudoscalar meson and vector meson, respectively. We test the D meson wave function by a χ fit with experimental data of six B → DP channels. We give the branching ratios of all the charmed B decay channels, most of which agree with experiments amazingly well. The predicted Bs decays can be confronted with the future experimental data. By straightforward calculations, our pQCD approach gives the right relative strong phase of a2/a1 with experiments. We also predict the percentage of transverse polarizations in B(s) → DV decay channels.