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/m_Q 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 |V_{cb}|: for they complement the estimate of the potential impact of 1/m_Q^4 contributions. We draw semiquantitative conclusions for the expected scale of Weak Annihilation in semileptonic B decays, both for its valence and non-valence components.

17 pages, 3 figures

References in corpus (1)

• Role of "Intrinsic Charm" in Semi-Leptonic B-Meson Decays

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