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Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B ->rho K-* and b -> f(0)(980)K-* decays
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Babar Collaboration (Including:
). (2006) Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B ->rho K-* and b -> f(0)(980)K-* decays. PHYSICAL REVIEW LETTERS, 97 (20). -. doi:10.1103/PhysRevLett.97.201801 ISSN 0031-9007.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.97.201801
Abstract
We report searches for B-meson decays to the charmless final states rho K-* and f(0)(980)K-* with a sample of 232x10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II e(+)e(-) collider. We measure in units of 10(-6) the following branching fractions, where the first error quoted is statistical and the second systematic, or upper limits are given at the 90% confidence level : B(B+->rho K-0(*+))< 6.1, B(B+->rho K-+(*0))=9.6 +/- 1.7 +/- 1.5, B(B-0 ->rho K--(*+))< 12.0, B(B-0 ->rho K-0(*0))=5.6 +/- 0.9 +/- 1.3, B(B+-> f(0)(980)K*+)=5.2 +/- 1.2 +/- 0.5, and B(B-0 -> f(0)(980)K-*0)< 4.3. For the significant modes, we also measure the fraction of longitudinal polarization and the charge asymmetry: f(L)(B+->rho K-+(*0))=0.52 +/- 0.10 +/- 0.04, f(L)(B-0 ->rho K-0(*0))=0.57 +/- 0.09 +/- 0.08, A(CP)(B+->rho K-+(*0))=-0.01 +/- 0.16 +/- 0.02, A(CP)(B-0 ->rho K-0(*0))=0.09 +/- 0.19 +/- 0.02, and A(CP)(B+-> f(0)(980)K*+)=-0.34 +/- 0.21 +/- 0.03.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Journal or Publication Title: | PHYSICAL REVIEW LETTERS | ||||
Publisher: | AMERICAN PHYSICAL SOC | ||||
ISSN: | 0031-9007 | ||||
Official Date: | 17 November 2006 | ||||
Dates: |
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Volume: | 97 | ||||
Number: | 20 | ||||
Number of Pages: | 7 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevLett.97.201801 | ||||
Publication Status: | Published |
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