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Search for CP violation in B-+/--> J/psi K-+/- and B-+/-->psi(2S)K-+/- decays
Ammar, Raymond G. Bean, Alice Besson, David Zeke Davis, Robin E. P. Kwak, Nowhan Zhao, X.
Ammar, Raymond G.
Bean, Alice
Besson, David Zeke
Davis, Robin E. P.
Kwak, Nowhan
Zhao, X.
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Abstract
We present a search for direct CP violation in B+/- --> J/psi K+/- and B+/- --> psi(2S)K+/- decays. In a sample of 9.7 X 10(6) B (B) over bar meson pairs collected with the CLEO detector, we have fully reconstructed 534 B+/- --> J/psi K+/- and 120 B+/- --> psi(2S)K+/- decays with very low background. We have measured the CP-violating charge asymmetry to be [+1.8 +/- 4.3(stat) +/- 0.4(syst)]% for B+/- --> J/psi K+/- and [+2.0 +/- 9.1(stat) +/- 1.0(syst)]% for B+/- --> psi(2S)K+/-.
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2000-06
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AMERICAN PHYSICAL SOC
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p5940_1.pdf
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Bonvicini, G, Cinabro, D, et al. Search for CP violation in B-+/--> J/psi K-+/- and B-+/-->psi(2S)K-+/- decays. AMERICAN PHYSICAL SOC. June 2000. 84(26) : 5940-5944