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Two-body B meson decays to eta and eta ': Observation of B ->eta ' K
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
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
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Abstract
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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1998-04
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AMERICAN PHYSICAL SOC
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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