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Observation of high momentum eta(l) production in B decays
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
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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1998-08
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AMERICAN PHYSICAL SOC
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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