Search for CP Violation in B± → ψ K± and B± → ψ(2S) K± dacays

CLEO Collaboration

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


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 [+0.8 ± 4.3 (sat) ± 0.4 (syst) ]% for B± → J/ψK± and [+2.0 ± 9.1(sat) ± 1.0 (syst)]% for B± → ψ(2S)K±.

Original languageEnglish (US)
Pages (from-to)5940-5944
Number of pages5
JournalPhysical Review Letters
Issue number26
StatePublished - 2000

ASJC Scopus subject areas

  • General Physics and Astronomy


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