Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: QCD factorization for B->PP and B->PV decays   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^0, and B_s
mesons into PP and PV 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 PP and PV final states, an analysis of the pi-rho system, and the
time-dependent CP asymmetry in the K phi and K eta' final states.

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The categories of this paper are: eess
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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
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The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: q-fin
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
3
The categories of this paper are: physics
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: funct-an