| PUB-06/020 Study of inclusive B- and B0bar decays to flavor-tagged D, Ds and Lambda_c+ |
| Doc Type |
Journal Papers |
| Record Created |
February 26, 2006 |
| SLAC-PUB |
| Preprint # |
hep-ex/0606026 |
| Comments |
16 pages, 24 postscript figues, submitted to PRD |
| Abstract |
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We report on a study of inclusive B- and Bbar0 meson decays to D0 X, Dbar0 X, D+ X, D- X, Ds+ X, Ds- X, Lambda_c+ X, Lambda_c- X, based on a sample of 231 million BBbar events recorded with the BABAR detector at the Y(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anti-charm particles per Bbar decay, separately for charged and neutral parents. We derive the total charm yield per B- decay, n_c- = 1.202 +/- 0.023 +/- 0.040^{+0.035}_{-0.029}, and per Bbar0 decay, n_c0 = 1.193 +/- 0.030 +/- 0.034^{+0.044}_{-0.035} where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the Bbar rest frame.
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| Submitted To | Physical Review D |
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| Date Submitted | June 13, 2006 |
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| Journal Year | 2007 |
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| Journal Volume | 75 |
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| Journal Article/Page Range | 072002 |
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