Search for nucleon decay into μ+K0 and νk0

B. G. Cortez, R. M. Bionta, G. Blewitt, C. B. Bratton, S. Errede, G. W. Foster, W. Gajewski, K. S. Ganezer, M. Goldhaber, T. J. Haines, T. W. Jones, D. Kielczewska, W. R. Kropp, J. G. Learned, E. Lehmann, J. M. Losecco, H. S. Park, F. Reines, J. Schultz, S. SeidelE. Shumard, D. Sinclair, H. W. Sobel, J. L. Stone, L. R. Sulak, R. Svoboda, J. C. Van Der Velde, C. Wuest

Research output: Contribution to journalArticlepeer-review


Observations have been made 1570 m (water equivalent) underground with an 8000-metric-ton water Cherenkov detector. During a live time of 132 days, events consistent with the decay modes p→μ+K0 and n→νK0 were searched for in a fiducial mass of 3300 metric tons. It is concluded that the limit on the lifetime for bound plus free protons divided by the μ+K0 branching ratio is τB>2.6×1031 yr. For bound neutrons decaying into νK0 the limit is τB>0.8×1031 yr (90% confidence level).

Original languageEnglish (US)
Pages (from-to)1092-1095
Number of pages4
JournalPhysical review letters
Issue number13
StatePublished - 1984
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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