Search for CP Violation in B+/- --> J/ψK+/- and B+/- --> ψ\(2S\)K+/- Decays
Abstract
We present a search for direct CP violation in B+/--->J/ψK+/- and B+/--->ψ\(2S\)K+/- decays. In a sample of 9.7×106 BB¯ meson pairs collected with the CLEO detector, we have fully reconstructed 534 B+/--->J/ψK+/- and 120 B+/--->ψ\(2S\)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/ψK+/- and [+2.0+/-9.1\(stat\)+/-1.0\(syst\)]% for B+/--->ψ\(2S\)K+/-.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2000
- DOI:
- 10.1103/PhysRevLett.84.5940
- arXiv:
- arXiv:hep-ex/0003004
- Bibcode:
- 2000PhRvL..84.5940B
- Keywords:
-
- High Energy Physics - Experiment
- E-Print:
- 9 pages, 2 figures