Data di Pubblicazione:
2015
Abstract:
We extract the magnitude of the CKM matrix element Vcb and the most relevant parameters of the Heavy Quark Expansion from data of inclusive semileptonic B decays. Our calculation includes the recently computed O(alphas Lambda^2/mb^2) corrections and a careful estimate of the residual theoretical uncertainty. Using a recent determination of the charm quark mass, we obtain |Vcb| = (42.21+-0.78)x10-3 and mb_kin(1GeV)=(4.553+-0.020)GeV.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
Andrea Alberti; Paolo Gambino; Kristopher Healey; Soumitra Nandi
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