Global analysis of inclusive B decays

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dc.creatorBauer, Christian W.
dc.creatorLigeti, Zoltan
dc.creatorLuke, Michael
dc.creatorManohar, Aneesh V.
dc.creatorTrott, Michael
dc.date2004-08-02
dc.date2004-10-29
dc.date.accessioned2026-07-07T10:29:14Z
dc.date.available2026-07-07T10:29:14Z
dc.descriptionIn light of the large amount of new experimental data, we revisit the determination of V_{cb} and m_b from inclusive semileptonic and radiative B decays. We study shape variables to order lqcd^3/m_b^3 and alpha_s^2β_0, and include the order alpha_s, lqcd/m_b correction to the hadron mass spectrum in semileptonic decay, which improves the agreement with the data. We focus on the 1S and kinetic mass schemes for the b quark, with and without expanding m_b-m_c in HQET. We perform fits to all available data from BABAR, BELLE, CDF, CLEO, and DELPHI, discuss the theoretical uncertainties, and compare with earlier results. We find V_{cb} = (41.4 +- 0.6 +- 0.1) x 10^{-3} and m_b^{1S} = 4.68 +- 0.03 GeV, including our estimate of the theoretical uncertainty in the fit.
dc.description12 pages, 6 figures. Includes latest BELLE data on lepton and hadron moments. Electromagnetic correction was improperly included in previous version
dc.identifierhttps://arxiv.org/abs/hep-ph/0408002
dc.identifierhttp://arxiv.org/abs/hep-ph/0408002
dc.identifierPhys.Rev.D70:094017,2004
dc.identifierdoi:10.1103/PhysRevD.70.094017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177729
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGlobal analysis of inclusive B decays
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