Two-body B meson decays to eta and eta ': Observation of B ->eta ' K
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Issue Date
1998-04Author
Ammar, Raymond G.
Baringer, Philip S.
Bean, Alice
Besson, David Zeke
Coppage, Don
Darling, C.
Davis, Robin E. P.
Kotov, S.
Kravchenko, I.
Kwak, Nowhan
Zhou, L.
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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In a sample of 6.6 x 10(6) produced B mesons we have observed decays B --> eta'K, with branching fractions B(B+ --> eta'K+)= (6.5(-1.4)(+1.5) +/- 0.9) X 10(-5) and B(B-0 --> eta'K-0) = (4.7(-2.0)(+2.7) +/- 0.9) X 10(-5). We have searched with comparable sensitivity for 17 related decays to final states containing an eta or eta' meson accompanied by a single particle or low-lying resonance. Our upper limits for these constrain theoretical interpretations of the B --> eta'K signal.
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Citation
Behrens, BH, Ford, WT, et al. Two-body B meson decays to eta and eta ': Observation of B ->eta ' K. AMERICAN PHYSICAL SOC. April 1998. 80(17) : 3710-3714
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