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Published April 27, 1998 | Version Published
Journal Article Open

Two-Body B Meson Decays to η and η': Observation of B → η'K

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Abstract

In a sample of 6.6×10^6 produced B mesons we have observed decays B→η′K, with branching fractions B(B^+→η′K^+) = (6.5_(-1.4)^(+1.5)±0.9)×10^(-5) and B(B^0→η′K^0) = (4.7_(-2.0)^(+2.7)±0.9)×10^(-5). We have searched with comparable sensitivity for 17 related decays to final states containing an η or η′ meson accompanied by a single particle or low-lying resonance. Our upper limits for these constrain theoretical interpretations of the B→η′K signal.

Additional Information

© 1998 The American Physical Society. Received 5 January 1998. We thank A. Ali, T. DeGrand, P. Lepage, H. Lipkin, A. Kagan, and A. Soni for useful discussions. We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. This work was supported by the National Science Foundation, the U.S. Department of Energy, the Heisenberg Foundation, Research Corporation, the Natural Sciences and Engineering Research Council of Canada, the A. P. Sloan Foundation, and the Swiss National Science Foundation.

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Eprint ID
28812
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CaltechAUTHORS:20120117-125648375

Funding

NSF
Department of Energy (DOE)
Heisenberg Foundation
Research Corporation
Natural Sciences and Engineering Research Council of Canada
A. P. Sloan Foundation
Swiss National Science Foundation

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Created
2012-01-17
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Updated
2021-11-09
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