Two-body B Meson Decays to eta and eta': Observation of B->eta K*

Details Two-body B Meson Decays to eta and eta': Observation of B->eta K* Two-body B Meson Decays to eta and eta': Observation of B->eta K*

1999-12-23

arxiv.org/abs/hep-ex/9912059v1

Phys.Rev.Lett.85:520-524,2000

Physics

High Energy Physics

High Energy Physics - Experiment

12 page postscript file, 2 figures

Scientific paper

10.1103/PhysRevLett.85.520

In a sample of 19 million produced B mesons, we have observed the decays B -> eta K* and improved our previous measurements of B -> eta'K. The branching fractions we measure for these decay modes are BR(B+ -> eta K*+) = (26.4 +9.6-8.2 +- 3.3) x $10^{-6}$, BR(B0 -> eta K*0) = (13.8 +5.5-4.6 +- 1.6) x $10^{-6}$, BR(B+ -> eta' K+) = (80 +10-9 +- 7) x $10^{-6}$ and BR(B0 -> eta' K0) = (89 +18-16 +- 9) x $10^{-6}$. We have searched with comparable sensitivity for related decays and report upper limits for these branching fractions.

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