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Measurement of the B-0 -> D*- D-s(*+) and D-s(+)-> phi pi(+) branching fractions
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BABAR Collaboration (Including: UNSPECIFIED). (2005) Measurement of the B-0 -> D*- D-s(*+) and D-s(+)-> phi pi(+) branching fractions. PHYSICAL REVIEW D, 71 (9). -. doi:10.1103/PhysRevD.71.091104 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.71.091104
Abstract
We present measurements of the branching fractions B(B-0 -> D*- D-s(*+)) and B(D-s(+) -> phi pi(+)), based on 123 x 10(6) Upsilon(4S) -> B (B) over bar decays collected by the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) B factory. A partial reconstruction technique is used to measure B(B-0 -> D*- D-s(*+)) and the decay chain is fully reconstructed to measure the branching fraction product B(B-0 -> D*- D-s(*+)) x B(D-s(+) -> phi pi(+)). Comparing these two measurements provides a model-independent determination of the D-s(+) -> phi pi(+) branching fraction. We obtain B(B-0 -> D*- D-s(*+)) = (1.88 +/- 0.09 +/- 0.17)% and B(D-s(+) -> phi pi(+)) = (4.81 +/- 0.52 +/- 0.38)%, where the first uncertainties are statistical and the second systematic.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QB Astronomy Q Science > QC Physics |
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| Journal or Publication Title: | PHYSICAL REVIEW D | ||||
| Publisher: | AMERICAN PHYSICAL SOC | ||||
| ISSN: | 1550-7998 | ||||
| Official Date: | May 2005 | ||||
| Dates: |
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| Volume: | 71 | ||||
| Number: | 9 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | - | ||||
| DOI: | 10.1103/PhysRevD.71.091104 | ||||
| Publication Status: | Published |
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