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

Abstract

We analyze the charmless two-body $B\to VP$ decays in the soft-collinear-effective-theory (SCET), where $V(P)$ denotes a light vector (pseudoscalar) meson. Using the current experimental data, we find two solutions in ${\chi }^2$ fit for the 16 non-perturbative inputs responsible for the 87 $B\to PP$ and $B\to VP$ decay channels in SU(3) symmetry. Chirally enhanced penguins can only change several charming penguins sizably, since they share the same topology. The (S-P)(S+P) annihilation penguins in the perturbative QCD approach have the same topology with charming penguins in SCET, which play an important role in direct CP asymmetries.

Comments: 4 pages, Talk given by Lu at the XLIIIth Rencontres de Moriond QCD and High Energy Interactions