Measurement of the Relative Branching Fractions for B^- to D/D^{*}/D^{**}(D^{(*)}\pi) \ell^- \bar{\nu}_{\ell} with a Large Sample of Tagged B Mesons

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We present a study of B semileptonic decays into charm final states based on 211.7 fb{sup -1} of data collected at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring. Using a novel technique based on the simultaneous fit of a set of variables reconstructed on the recoil of a B tagged in an hadronic decay mode, we measure the relative branching fractions {Lambda}(B{sup -} {yields} D{sup 0}{ell}{sup -}{bar {nu}}{sub {ell}}) = 0.611 {+-} 0.022 (stat.) {+-} 0.027 (syst.) and {Lambda}(B{sup -} {yields} D**{sup 0})(D{sup (*)}{pi}){ell}{sup -}{bar {nu}}{sub {ell}}/{Lambda}(B{sup -} {yields} DX{ell}{sup -}{bar {nu}}{sub ... continued below

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20 pages

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Aubert, B September 26, 2006.

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We present a study of B semileptonic decays into charm final states based on 211.7 fb{sup -1} of data collected at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring. Using a novel technique based on the simultaneous fit of a set of variables reconstructed on the recoil of a B tagged in an hadronic decay mode, we measure the relative branching fractions {Lambda}(B{sup -} {yields} D{sup 0}{ell}{sup -}{bar {nu}}{sub {ell}}) = 0.611 {+-} 0.022 (stat.) {+-} 0.027 (syst.) and {Lambda}(B{sup -} {yields} D**{sup 0})(D{sup (*)}{pi}){ell}{sup -}{bar {nu}}{sub {ell}}/{Lambda}(B{sup -} {yields} DX{ell}{sup -}{bar {nu}}{sub {ell}}) = 0.173 {+-} 0.017 (stat.) {+-} 0.021 (syst.).

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20 pages

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http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-12004.html

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  • Contributed to 33rd International Conference on High Energy Physics (ICHEP 06), Moscow, Russia, 26 Jul - 2 Aug 2006

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  • Report No.: SLAC-PUB-12004
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 892631
  • Archival Resource Key: ark:/67531/metadc882583

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  • September 26, 2006

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Thumbnail image of item number 1 in: 'Measurement of the Relative Branching Fractions for B^- to D/D^{*}/D^{**}(D^{(*)}\pi) \ell^- \bar{\nu}_{\ell} with a Large Sample of Tagged B Mesons'.
Thumbnail image of item number 2 in: 'Measurement of the Relative Branching Fractions for B^- to D/D^{*}/D^{**}(D^{(*)}\pi) \ell^- \bar{\nu}_{\ell} with a Large Sample of Tagged B Mesons'.
Thumbnail image of item number 3 in: 'Measurement of the Relative Branching Fractions for B^- to D/D^{*}/D^{**}(D^{(*)}\pi) \ell^- \bar{\nu}_{\ell} with a Large Sample of Tagged B Mesons'.
Thumbnail image of item number 4 in: 'Measurement of the Relative Branching Fractions for B^- to D/D^{*}/D^{**}(D^{(*)}\pi) \ell^- \bar{\nu}_{\ell} with a Large Sample of Tagged B Mesons'.

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Aubert, B. Measurement of the Relative Branching Fractions for B^- to D/D^{*}/D^{**}(D^{(*)}\pi) \ell^- \bar{\nu}_{\ell} with a Large Sample of Tagged B Mesons, article, September 26, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc882583/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.