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Study of inclusive B- and (B)over-bar(0) decays to flavor-tagged D, Ds, and Λc+
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(2007) Study of inclusive B- and (B)over-bar(0) decays to flavor-tagged D, Ds, and Λc+. Physical Review D, Vol.75 (No.7). Article: 072002. doi:10.1103/PhysRevD.75.072002 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.75.072002
Abstract
We report on a study of inclusive B- and (B) over bar (0) meson decays to (DX)-X-0, (D) over bar X-0, D+X, D-X, Ds+X, Ds-X, Lambda X-+(c), (Lambda) over bar X--(c), based on a sample of 231x10(6) (B) over bar 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 anticharm particles per (B) over bar decay, separately for charged and neutral parents. We derive the total charm yield per B- decay, n(c)(-)=1.208 +/- 0.023 +/- 0.040(-0.029)(+0.035), and per (B) over bar (0) decay, n(c)(0)=1.203 +/- 0.030 +/- 0.034(-0.035)(+0.044) 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 (B) over bar rest frame.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Physical Review D | ||||
Publisher: | American Physical Society | ||||
ISSN: | 1550-7998 | ||||
Official Date: | April 2007 | ||||
Dates: |
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Volume: | Vol.75 | ||||
Number: | No.7 | ||||
Number of Pages: | 19 | ||||
Page Range: | Article: 072002 | ||||
DOI: | 10.1103/PhysRevD.75.072002 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published |
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