Production of and mesons in decay and a search for second-class currents

P. Baringer, R. L. McIlwain, D. H. Miller, E. I. Shibata, S. Behrends, Jan M. Guida, Joan A. Guida, F. Morrow, R. Poling, E. H. Thorndike, P. Tipton, M. S. Alam, N. Katayama, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, V. Tanikella, D. Bortoletto, M. GoldbergR. Holmes, N. Horwitz, A. Jawahery, P. Lubrano, G. C. Moneti, V. Sharma, I. P.J. Shipsey, P. Thoma, S. E. Csorna, T. Letson, M. D. Mestayer, R. S. Panvini, G. B. Word, A. Bean, G. J. Bobbink, I. C. Brock, A. Engler, T. Ferguson, R. W. Kraemer, C. Rippich, H. Vogel, C. Bebek, K. Berkelman, E. Blucher, D. G. Cassel, T. Copie, R. Desalvo, J. W. Dewire, R. Ehrlich, R. S. Galik

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The production of and mesons in decay has been studied with the CLEO detector. A sample of 42 000 e+e-'+- events at a mean s of 10.5 GeV is used in the analysis. The branching ratio B(-1/2) is measured to be (1.60±0. 27±0.41)%. No signal for production from decay is observed, resulting in 95%-confidence-level upper limits of 1.8% for B(-1/2), 2.1% for B(-01/2), and 2.1% for inclusive production in decay. No evidence is found for decays proceeding via second-class currents.

Original languageEnglish (US)
Pages (from-to)1993-1996
Number of pages4
JournalPhysical review letters
Issue number18
StatePublished - Jan 1 1987

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    Baringer, P., McIlwain, R. L., Miller, D. H., Shibata, E. I., Behrends, S., Guida, J. M., Guida, J. A., Morrow, F., Poling, R., Thorndike, E. H., Tipton, P., Alam, M. S., Katayama, N., Kim, I. J., Li, W. C., Lou, X. C., Sun, C. R., Tanikella, V., Bortoletto, D., ... Galik, R. S. (1987). Production of and mesons in decay and a search for second-class currents. Physical review letters, 59(18), 1993-1996.