The Two Roads to "Intrinsic Charm" in B Decays
High Energy Physics - Phenomenology
2014-11-20 v1
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.
Keywords
Cite
@article{arxiv.0911.3322,
title = {The Two Roads to "Intrinsic Charm" in B Decays},
author = {Ikaros Bigi and Thomas Mannel and Sascha Turczyk and Nikolai Uraltsev},
journal= {arXiv preprint arXiv:0911.3322},
year = {2014}
}
Comments
17 pages, 3 figures