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

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

2008-05-30

arxiv.org/abs/0805.4695v1

Nucl.Phys.Proc.Suppl.185:75-80,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1016/j.nuclphysbps.2008.10.00

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.

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