Global analysis of inclusive B decays

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In light of the large amount of new experimental data, we revisit the determination of |V{sub cb}| and m{sub b} from inclusive semileptonic and radiative B decays. We study shape variables to order {Lambda}{sub QCD}{sup 3}/m{sub b}{sup 3} and {alpha}{sub s}{sup 2}{beta}{sub 0}, and include the order {alpha}{sub s} {Lambda}{sub QCD}/m{sub 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{sub b}-m{sub c} in HQET. We perform fits to all available data from BABAR, BELLE, ... continued below

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12 pages

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Bauer, Christian W.; Ligeti, Zoltan; Luke, Michael; Manohar, Aneesh & Trott, Michael August 13, 2004.

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Description

In light of the large amount of new experimental data, we revisit the determination of |V{sub cb}| and m{sub b} from inclusive semileptonic and radiative B decays. We study shape variables to order {Lambda}{sub QCD}{sup 3}/m{sub b}{sup 3} and {alpha}{sub s}{sup 2}{beta}{sub 0}, and include the order {alpha}{sub s} {Lambda}{sub QCD}/m{sub 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{sub b}-m{sub 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{sub cb}| = (41.9 {+-} 0.6 {+-} 0.1{sub {tau}{sub B}}) x 10{sup -3} and m{sub b}{sup 1S} = 4.68 {+-} 0.04GeV, including our estimate of the theoretical uncertainty in the fit.

Physical Description

12 pages

Notes

INIS; OSTI as DE00837417

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  • Journal Name: Physical Review D; Journal Volume: 70; Journal Issue: 9; Other Information: Submitted to Physical Review D: Volume 70, No.9; Journal Publication Date: 11/2004

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  • Report No.: LBNL--55945
  • Grant Number: AC03-76SF00098
  • DOI: 10.1103/PhysRevD.70.094017 | External Link
  • Office of Scientific & Technical Information Report Number: 837417
  • Archival Resource Key: ark:/67531/metadc787500

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  • August 13, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • April 4, 2016, 3:18 p.m.

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Bauer, Christian W.; Ligeti, Zoltan; Luke, Michael; Manohar, Aneesh & Trott, Michael. Global analysis of inclusive B decays, article, August 13, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc787500/: accessed August 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.