Observation of the decay Ωc0 → Ω-e+ve

R. Ammar, D. Besson, X. Zhao, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, S. Z. Li, R. Poling, A. Smith, C. J. Stepaniak, J. Urheim, S. Ahmed, M. S. Alam, L. Jian, M. Saleem, F. Wappler, E. Eckhart, K. K. Gan, C. GwonT. Hart, K. Honscheid, D. Hufnagel, H. Kagan, R. Kass, T. K. Pedlar, J. B. Thayer, E. von Toerne, T. Wilksen, M. M. Zoeller, H. Muramatsu, S. J. Richichi, H. Severini, P. Skubic, S. A. Dytman, S. Nam, V. Savinov, S. Chen, J. W. Hinson, J. Lee, D. H. Miller, V. Pavlunin, E. I. Shibata, I. P.J. Shipsey, D. Cronin-Hennessy, A. L. Lyon, C. S. Park, W. Park, E. H. Thorndike, T. E. Coan

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Several 14 Ω-e+ pairs of which 11.4±3.8 are consistent with the decay Ωc0→ Ω-e+ve were reconstructed. The probability that a background fluctuation was observed is 7.6×10-5. The measured Β·σ is (42.2±14.1±5.7) fb.

Original languageEnglish (US)
Article number171803
Pages (from-to)171803/1-171803/5
JournalPhysical review letters
Issue number17
StatePublished - Oct 21 2002

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    Ammar, R., Besson, D., Zhao, X., Anderson, S., Frolov, V. V., Kubota, Y., Lee, S. J., Li, S. Z., Poling, R., Smith, A., Stepaniak, C. J., Urheim, J., Ahmed, S., Alam, M. S., Jian, L., Saleem, M., Wappler, F., Eckhart, E., Gan, K. K., ... Coan, T. E. (2002). Observation of the decay Ωc0 → Ω-e+ve. Physical review letters, 89(17), 171803/1-171803/5. [171803].