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Study of the decay (B)over-bar(0)-> D*+omega pi(-)
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(2006) Study of the decay (B)over-bar(0)-> D*+omega pi(-). PHYSICAL REVIEW D, 74 (1). -. doi:10.1103/PhysRevD.74.012001 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.74.012001
Abstract
We report on a study of the decay (B) over bar (0)-> D*+omega pi(-) with the BABAR detector at the PEP-II B-factory at the Stanford Linear Accelerator Center. Based on a sample of 232x10(6) B (B) over bar decays, we measure the branching fraction B((B) over bar (0)-> D*+omega pi(-))=(2.88 +/- 0.21(stat.)+/- 0.31(syst.))x10(-3). We study the invariant mass spectrum of the omega pi(-) system in this decay. This spectrum is in good agreement with expectations based on factorization and the measured spectrum in tau(-)->omega pi(-)nu(tau). We also measure the polarization of the D*+ as a function of the omega pi(-) mass. In the mass region 1.1 to 1.9 GeV we measure the fraction of longitudinal polarization of the D*+ to be Gamma(L)/Gamma=0.654 +/- 0.042(stat.)+/- 0.016(syst.). This is in agreement with the expectations from heavy-quark effective theory and factorization assuming that the decay proceeds as (B) over bar (0)-> D*+rho(1450)(-), rho(1450)(-)->omega pi(-).
Item Type: | Journal Article | ||||
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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: | July 2006 | ||||
Dates: |
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Volume: | 74 | ||||
Number: | 1 | ||||
Number of Pages: | 12 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevD.74.012001 | ||||
Publication Status: | Published |
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