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B meson decays to η(′)K*, η(′)ρ, η(′)π0, ωπ0, and φπ0

Aubert, B. et al. (2004) B meson decays to η(′)K*, η(′)ρ, η(′)π0, ωπ0, and φπ0. Physical Review D, 70 (3). 032006. ISSN 1550-7998

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We present measurements of the branching fractions and charge asymmetries (where appropriate) of two-body B decays to η(′)K*, η(′)ρ, η(′)π0, ωπ0, and φπ0. The data were recorded with the BABAR detector at PEP-II and correspond to 89×106 BB̅ pairs produced in e+e- annihilation through the Υ(4S) resonance. We find significant signals for two decay modes and measure the branching fractions B(B+→ηK*+)=(25.6±4.0±2.4)×10-6 and B(B0→ηK*0)=(18.6±2.3±1.2)×10-6, where the first error is statistical and the second systematic. We also find evidence with significance 3.5σ for a third decay mode and measure B(B+→ηρ+)=(9.2±3.4±1.0)×10-6. For other channels, we set 90% C.L. upper limits of B(B0→ηρ0)<1.5×10-6, B(B+→η′K*+)<14×10-6, B(B0→η′K*0)<7.6×10-6, B(B+→η′ρ+)<22×10-6, B(B0→η′ρ0)<4.3×10-6, B(B0→ηπ0)<2.5×10-6, B(B0→η′π0)<3.7×10-6, B(B0→ωπ0)<1.2×10-6, and B(B0→φπ0)<1.0×10-6. For self-flavor-tagging modes with significant signals, the time-integrated charge asymmetries are Ach(ηK*+)=+0.13±0.14±0.02 and Ach(ηK*0)=+0.02±0.11±0.02.

Item Type: Article
Subjects: Q Science > QC Physics
Schools: School of Applied Sciences
Depositing User: Sharon Beastall
Date Deposited: 12 May 2011 08:34
Last Modified: 28 Aug 2021 11:06


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