QCD factorization for B→PP and B→PV decays

被引：800

作者：

Beneke, M ^{[1
]}

Neubert, M

机构：

[1] Rhein Westfal TH Aachen, Inst Theoret Phys E, D-52056 Aachen, Germany

[2] Cornell Univ, Newman Lab Elementary Particle Phys, Ithaca, NY 14853 USA

来源：

NUCLEAR PHYSICS B | 2003年 / 675卷 / 1-2期

关键词：

D O I：

10.1016/j.nuclphysb.2003.09.026

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A comprehensive study of exclusive hadronic B-meson decays into final states containing two pseudoscalar mesons (PP) or a pseudoscalar and a vector meson (PV) is presented. The decay amplitudes are calculated at leading power in Lambda(QCD)/m(b) and at next-to-leading order in alpha(S), using the QCD factorization approach. The calculation of the relevant hard-scattering kernels is completed. Important classes of power corrections, including "chirally-enhanced" terms and weak annihilation contributions, are estimated and included in the phenomenological analysis. Predictions are presented for the branching ratios of the complete set of the 96 decays of B-, (B) over bar (0), and (B) over bar (S), mesons into P P and P V final states, and for most of the corresponding CP asymmetries. Several decays and observables of particular phenomenological interest are discussed in detail, including the magnitudes of the penguin amplitudes in P P and P V final states, an analysis of the pirho system, and the time-dependent CP asymmetry in the Kphi and Keta' final states. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：333 / 415

页数：83

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