Aspects of QCD Factorization
Matthias Neubert
Abstract
The QCD factorization approach provides the theoretical basis for a systematic analysis of nonleptonic decay amplitudes of B mesons in the heavy-quark limit. After recalling the basic ideas underlying this formalism, several tests of QCD factorization in the decays B -> D(*) L, B -> K* gamma, and B -> pi K,pi pi are discussed. It is then illustrated how factorization can be used to obtain new constraints on the parameters of the unitarity triangle.
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