Experimental limit on the decay K-K0

H. Aihara, M. Alston-Garnjost, R. E. Avery, A. Barbaro-Galtieri, A. R. Barker, A. V. Barnes, B. A. Barnett, D. A. Bauer, H. U. Bengtsson, D. L. Bintinger, G. J. Bobbink, T. S. Bolognese, A. D. Bross, C. D. Buchanan, A. Buijs, D. O. Caldwell, A. R. Clark, G. D. Cowan, D. A. Crane, O. I. DahlK. A. Derby, J. J. Eastman, P. H. Eberhard, T. K. Edberg, A. M. Eisner, R. Enomoto, F. C. Erné, T. Fujii, J. W. Gary, W. Gorn, J. M. Hauptman, W. Hofmann, J. E. Huth, J. Hylen, T. Kamae, H. S. Kaye, K. H. Kees, R. W. Kenney, L. T. Kerth, Winston Ko, R. I. Koda, R. R. Kofler, K. K. Kwong, R. L. Lander, W. G.J. Langeveld, J. G. Layter, F. L. Linde, C. S. Lindsey, S. C. Loken, A. Lu, X. Q. Lu, G. R. Lynch, R. J. Madaras, K. Maeshima, B. D. Magnuson, J. N. Marx, G. E. Masek, L. G. Mathis, J. A.J. Matthews, S. J. Maxfield, S. O. Melnikoff, E. S. Miller, W. Moses, R. R. McNeil, P. Nemethy, D. R. Nygren, P. J. Oddone, H. P. Paar, D. A. Park, S. K. Park, D. E. Pellett, M. Pripstein, M. T. Ronan, R. R. Ross, F. R. Rouse, K. A. Schwitkis, J. C. Sens, G. Shapiro, M. D. Shapiro, B. C. Shen, W. E. Slater, J. R. Smith, J. S. Steinman, M. L. Stevenson, D. H. Stork, M. G. Strauss, M. K. Sullivan, T. Takahashi, J. R. Thompson, N. Toge, S. Toutounchi, R. Van Tyen, B. Van Uitert, G. J. Vandalen, R. F. Van Daalen Wetters, W. Vernon, W. Wagner, E. M. Wang, Y. X. Wang, M. R. Wayne

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We set an upper limit on the branching fraction B(K-K0)<0.26% at the 95% confidence level. The data sample was obtained with the TPC/Two-Gamma detector facility at the SLAC e+e- storage ring PEP. The process K-K0 is related via SU(3) to the second-class-current decay. Our limit is nearly 20 times smaller than the recently reported branching fraction B of (5.1±1.0±1.2)%, whereas SU(3) symmetry predicts the ratio of to KK production to be at most 5:1. We also measure the branching fraction B(K*-)=(1.5±0. 4*0.4%.

    Original languageEnglish (US)
    Pages (from-to)751-754
    Number of pages4
    JournalPhysical Review Letters
    Volume59
    Issue number7
    DOIs
    StatePublished - 1987

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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