PARTON-HADRON DUALITY IN NONLEPTONIC B HADRON DECAYS

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Abstract
Assuming the so-called global duality we argue that it is very likely that local duality needed to obtain results for the hadronic width of heavy meson decays within the 1/mQ expansion holds. Hence, if the discrepancy between experiment and the theory concerning charm counting, the semileptonic branching fraction and the lifetimes of b hadrons persist, it may be taken as a hint at some qualitatively new effect in (nonperturbative) QCD or at new physics.

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