Calculation of Atmospheric Neutrino-Induced Backgrounds in a Nucleon-Decay Search

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

Research output: Contribution to journalArticlepeer-review


We have developed an extensive model of atmospheric 1/2 interactions which provide the backgrounds to nucleon-decay experiments. We report results from a 417-live-day exposure of the Irvine-Michigan-Brookhaven detector. During this time 401 contained events were observed at a rate and with characteristics consistent with atmospheric 1/2 interactions. We have calculated the expected backgrounds to a variety of two- and three-body decay modes and have set lower limits on many nucleon partial lifetimes.

Original languageEnglish (US)
Pages (from-to)1986-1989
Number of pages4
JournalPhysical review letters
Issue number16
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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