Comments on Color-Suppressed Hadronic B Decays
Matthias Neubert, Alexey A. Petrov
Abstract
Recent experimental results on the color-suppressed nonleptonic decays B0 -> D(*)0 pi0 provide evidence for a failure of the naive factorization model and for sizeable relative strong-interaction phases between class-1 and class-2 B -> D(*) pi decay amplitudes. The allowed regions for the corresponding ratios of (complex) isospin amplitudes and a2/a1 parameters are determined. The results are interpreted in the context of QCD factorization for the related class-1 amplitudes in the heavy-quark limit.
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