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Two-body B meson decays to eta and eta ': Observation of B ->eta K
Ammar, Raymond G. Bean, Alice Besson, David Zeke Davis, Robin E. P. Kravchenko, I. Kwak, Nowhan Zhao, X.
Ammar, Raymond G.
Bean, Alice
Besson, David Zeke
Davis, Robin E. P.
Kravchenko, I.
Kwak, Nowhan
Zhao, X.
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Abstract
In a sample of 19 x 10(6) 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 B(B+ --> eta K*(+)) = (26.4(-8.2)(+9.6) +/- 3.3) X 10(-6), B(B-0 --> eta K*(0)) = (13.8(-4.6)(+5.5) +/- 1.6) X 10(-6) B(B+ --> eta'K+) = (80(-9)(+10) +/- 7) X 10(-6), and B(B-0 --> eta'K-0) = (89(-16)(+18) +/- 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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2000-07
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AMERICAN PHYSICAL SOC
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p520_1.pdf
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Richichi, SJ, Severini, H, et al. Two-body B meson decays to eta and eta ': Observation of B ->eta K. AMERICAN PHYSICAL SOC. July 2000. 85(3) 520-524