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Search for proton decay into e++0 in the IMB-3 detector

  • R. Becker-Szendy
  • , C. B. Bratton
  • , D. R. Cady
  • , D. Casper
  • , R. Claus
  • , M. Crouch
  • , S. T. Dye
  • , W. Gajewski
  • , M. Goldhaber
  • , T. J. Haines
  • , P. G. Halverson
  • , T. W. Jones
  • , D. Kielczewska
  • , W. R. Kropp
  • , J. G. Learned
  • , J. M. Losecco
  • , C. McGrew
  • , S. Matsuno
  • , J. Matthews
  • , M. S. Mudah
  • L. Price, F. Reines, J. Schultz, D. Sinclair, H. W. Sobel, J. L. Stone, L. R. Sulak, R. Svoboda, G. Thornton, J. C. Van Der Velde
  • University of Hawai'i at Mānoa
  • Cleveland State University
  • University of Notre Dame
  • University of Michigan, Ann Arbor
  • Boston University
  • Case Western Reserve University
  • University of California at Irvine
  • Brookhaven National Laboratory
  • University of Maryland, College Park
  • University College London
  • University of Warsaw
  • Louisiana State University

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

We report the results of a search for proton decay into e++0 in the 6800-ton IMB-3 water aerenkov detector. During 376 days of live time no events consistent with this decay were found in the 3300 ton fiducial volume. From this observation we derive a limit on the partial lifetime to be B>2.4×1032 yr (90% C.L.), which, combined with our previous result of 3.1×1032 yr, provides a limit of 5.5×1032 yr. The general features of the observed contained events are compatible with those expected from atmospheric neutrino interactions.

Original languageEnglish
Pages (from-to)2974-2976
Number of pages3
JournalPhysical Review D
Volume42
Issue number9
DOIs
StatePublished - 1990

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