Article ID Journal Published Year Pages File Type
1846112 Nuclear Physics B - Proceedings Supplements 2008 6 Pages PDF
Abstract

We analyze the charmless two-body B→PP,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 χ2 fit for the 16 non-perturbative inputs responsible for the 87 B→PP and B→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. We also give the predictions for the mixing induced CP asymmetry measurements sin 2βeff of various B→VP modes in SCET.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics