Charmless Two-body B Decays: A Global Analysis with QCD factorization

In this paper, we do a global analysis of B → PP and PV decays with QCD factorization approach. It is encouraging to observe that the predictions of QCD factorization are in good agreement with the experiments. The best fit γ is around 79◦. The penguin-to-tree ratio |Pππ/Tππ| of π+π− decays is prefered to be larger than 0.3. We also show the confidence levels for some interesting channels: B0 → π0π0, K+K− and B+ → ωπ+, ωK+. For B → πK∗ decays, they are expected to have smaller branching ratios with more precise measurements. ∗E-mail: [email protected], [email protected], [email protected]. †E-mail: [email protected].