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Search for proton decay via p→e+π0 in a large water cherenkov detector

  • Super-Kamiokande collaboration
  • The University of Tokyo
  • Stony Brook University
  • Boston University
  • Brookhaven National Laboratory
  • University of California at Irvine
  • National Aeronautics and Space Administration
  • California State University Dominguez Hills
  • George Mason University

Research output: Contribution to journalArticlepeer-review

124 Scopus citations

Abstract

We have searched for proton decay via p→e+π0 using data from a 25.5ktonyr exposure of the Super-Kamiokande detector. We find no candidate events with an expected background induced by atmospheric neutrinos of 0.1 events. From these data, we set a lower limit on the partial lifetime of the proton τ/Bp→e+π0 to be 1.6×1033years at a 90% confidence level.

Original languageEnglish
Pages (from-to)3319-3323
Number of pages5
JournalPhysical Review Letters
Volume81
Issue number16
DOIs
StatePublished - 1998

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