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We provide the analysis of charmless two-body $B\to VP$ decays under theframework of the soft-collinear-effective-theory (SCET), where $V(P)$ denotes alight vector (pseudoscalar) meson. Besides the leading power contributions,some power corrections (chiraly enhanced penguins) are also taken into account.Using the current available $B\to PP$ and $B\to VP$ experimental data onbranching fractions and CP asymmetry variables, we find two kinds of solutionsin $\chi^2$ fit for the 16 non-perturbative inputs which are essential in the87 $B\to PP$ and $B\to VP$ decay channels. Chiraly enhanced penguins can changeseveral charming penguins sizably, since they share the same topology. However,most of the other non-perturbative inputs and predictions on branching ratiosand CP asymmetries are not changed too much. With the two sets of inputs, wepredict the branching fractions and CP asymmetries of other modes especially$B_s\to VP$ decays. The agreements and differences with results in QCDfactorization and perturbative QCD approach are analyzed. We also study thetime-dependent CP asymmetries in channels with CP eigenstates in the finalstates and some other channels such as $\bar B^0/B^0\to\pi^\pm\rho^\mp$ and$\bar B_s^0/B_s^0\to K^\pm K^{*\mp}$. In the perturbative QCD approach, the$(S-P)(S+P)$ penguins in annihilation diagrams play an important role. Althoughthey have the same topology with charming penguins in SCET, there are manydifferences between the two objects in weak phases, magnitudes, strong phasesand factorization properties.

Charmless Two-body $B(B_s)\to VP$ decays In Soft-Collinear-Effective-Theory