Title

Observation of high momentum η′ production in b decays

Document Type

Article

Publication Date

1-1-1998

Abstract

We report the first observation of B → η′X transitions with high momentum η′ mesons. We observe 39.0 ± 11.6B decay events with 2.0 < p < 2.7GeV/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 → η′X ) = [6.2 ± 1.6(stat) ± 1.3(syst) (bkg)] × 10 for 2.0 < p < 2.7GeV/c. © 1998 The American Physical Society. η′ s -1.5 η′ +0.0 -4

Publication Name

Physical Review Letters

Volume Number

81

First Page

1786

Last Page

1790

Issue Number

9

DOI

10.1103/PhysRevLett.81.1786

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