The Two Roads to "Intrinsic Charm" in B Decays
Abstract
We describe two complementary ways to show the presence of higher order effects in the 1/mQ expansion for inclusive B decays that have been dubbed "Intrinsic Charm". Apart from the lessons they can teach us about QCD's nonperturbative dynamics their consideration is relevant for precise extractions of |Vcb|: for they complement the estimate of the potential impact of 1/mQ4 contributions. We draw semiquantitative conclusions for the expected scale of Weak Annihilation in semileptonic B decays, both for its valence and non-valence components.
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