Behrens, B. H. and Chadha, M. and Chan, S. and Eigen, G. and Miller, J. S. and O'Grady, C. and Schmidtler, M. and Urheim, J. and Würthwein, F. and Weinstein, Alan J. (1998) Two-Body B Meson Decays to η and η': Observation of B → η'K. Physical Review Letters, 80 (17). pp. 3710-3714. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:20120117-125648375
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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.|
|Classification Code:||PACS: 13.25.Hw, 14.40.Nd|
|Official Citation:||Two-Body B Meson Decays to η and η′: Observation of B→η′K B. H. Behrens et al. ((CLEO Collaboration)) pp. 3710-3714|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||17 Jan 2012 22:56|
|Last Modified:||22 Jul 2013 23:19|
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