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Exclusive Nonleptonic B Decays from QCD Light-Cone Sum Rules

We are going to review recent advances in the theory of exclusive nonleptonic B decays. The emphasis is going to be on the factorization hypothesis and the role of nonfactorizable contributions for nonleptonic B decays. In particular, we will discuss in more detail calculations of nonfactorizable contributions in the QCD light-cone sum rule approach and their implications to the $B \to \pi \pi$ and $B \to J/\psi K$ decays.

light cone sum rules; nonleptonic B decays; factorization

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