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25 April 2024

» arxiv » hep-ph/0611047

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Massive c-quark contributions to semileptonic b-quark decay near threshold
Matthew Dowling ; Alexey Pak ; PostScript ; PDF ; Other formats ; SLAC-SPIRES HEP ; to ; by ;
Date:	3 Nov 2006
Abstract:	The decay width of b to c,c,c,l,nu has been computed as an expansion in limit (1- 3*(m_c/m_b)) << 1 with zero lepton invariant mass. Considering O(alpha_s^2) corrections to b to c,l,nu with zero invariant lepton mass, inclusion of our result is shown to rectify the disagreement between the expansions around (1-(m_c/m_b)) << 1 and m_c/m_b << 1 at smaller values.
Source:	arXiv, hep-ph/0611047
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