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Measurement of branching fractions and charge asymmetries in B+ decays to eta pi(+), eta K+, eta rho(+), and eta(')pi(+), and search for B-0 decays to eta K-0 and eta omega
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BaBar Collaboration (Including: UNSPECIFIED). (2005) Measurement of branching fractions and charge asymmetries in B+ decays to eta pi(+), eta K+, eta rho(+), and eta(')pi(+), and search for B-0 decays to eta K-0 and eta omega. PHYSICAL REVIEW LETTERS, 95 (13). -. doi:10.1103/PhysRevLett.95.131803 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.95.131803
Abstract
We present measurements of branching fractions and charge asymmetries for six B-meson decay modes with an eta or eta' meson in the final state. The data sample corresponds to 232 x 10(6) BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) B Factory at SLAC. We measure the branching fractions (in units of 10(-6)): B(B+ -> eta pi(+)) = 5.1 +/- 0.6 +/- 0.3, B(B+ -> eta K+) = 3.3 +/- 0.6 +/- 0.3, B(B-0 -> eta K-0) = 1.5 +/- 0.7 +/- 0.1 (< 2.5 at 90% C.L.), B(B+ -> eta rho(+)) = 8.4 +/- 1.9 +/- 1.1, B(B-0 -> eta omega) = 1.0 +/- 0.5 +/- 0.2 (< 1.9 at 90% C.L.), and B(B+ -> eta'pi(+)) = 4.0 +/- 0.8 +/- 0.4, where the first uncertainty is statistical and second systematic. For the charged modes we also determine the charge asymmetries, all found to be compatible with zero.
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: | 23 September 2005 | ||||
Dates: |
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Volume: | 95 | ||||
Number: | 13 | ||||
Number of Pages: | 7 | ||||
Page Range: | - | ||||
DOI: | 10.1103/PhysRevLett.95.131803 | ||||
Publication Status: | Published |
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