Phenomenological Analysis of B->PP Decays with QCD Factorization

Details Phenomenological Analysis of B->PP Decays with QCD Factorization Phenomenological Analysis of B->PP Decays with QCD Factorization

2001-08-17

arxiv.org/abs/hep-ph/0108141v2

Phys.Rev. D65 (2002) 074001

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages, 5 figures. to appear in PRD

Scientific paper

10.1103/PhysRevD.65.074001

In this paper, we study nonleptonic charmless B decays to two light pseudoscalar mesons within the frame of QCD factorization, including the contributions from the chirally enhanced power corrections and weak annihilation. Predictions for the CP-averaged branching ratios and CP-violating asymmetries are given. Within the reasonable range of the parameters, we find that our predictions for the branching ratios of B -> PP are consistent with the present experimental data. But because of the logarithmic divergences at the endpoints in the hard spectator scatterings and weak annihilation, there are still large uncertainties in these predictions.

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