Observation of high momentum eta(l) production in B decays
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Issue Date
1998-08Author
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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We report the first observation of B --> eta'X transitions with high momentum eta' mesons. We observe 39.0 +/- 11.6 B decay events with 2.0 < p(eta') < 2.7 GeV/c, the high momentum region where background from b --> c processes is suppressed. We discuss the physical interpretation of the signal, including the possibility that it is due to b sg transitions. Given that interpretation, we find B(B --> eta'X-s) = [6.2 +/- 1.6(stat) +/- 1.3(syst)(-1.5)(+0.0)(bkg)] x 10(-4) for 2.0 < p(eta') < 2.7 GeV/c.
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Citation
Browder, TE, Li, Y, et al. Observation of high momentum eta(l) production in B decays. AMERICAN PHYSICAL SOC. August 1998. 81(9) : 1786-1790
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