Observation of CP violation in B ->eta/K-0 decays

B. Aubert, J.Y. Chen, K. Peters, L.L. Zhang, S. Chen, W. Wang, X.H. Li, M.A. Baak, G. Raven, H. Snoek, P. David, H. Schroder, H. Liu, N. van Bakel, A. Wagner, Z. Yu

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We present measurements of the time-dependent CP-violation parameters S and C in B0→η′K0 decays. The data sample corresponds to 384×106 BB̄ pairs produced by e+e- annihilation at the Υ(4S). The results are S=0.58±0.10±0.03 and C=-0.16±0.07±0. 03. We observe mixing-induced CP violation with a significance of 5.5 standard deviations in this b→s penguin dominated mode. © 2007 The American Physical Society.
Original languageEnglish
JournalPhysical Review Letters
Issue number3
Publication statusPublished - 2007

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Observation of CP violation in B ->eta/K-0 decays


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