Search for Proton Decay via p -> e+ pi0 in a Large Water Cherenkov Detector

Preprint

16 June 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/9806014

Abstract

We have searched for proton decay via p -> e+ pi0 using data from a 25.5 kton-year 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 to be 1.6E33 years at a 90% confidence level.

Keywords

CHERENKOV DETECTOR
SEARCH FOR PROTON
WATER CHERENKOV
PROTON DECAY
LARGE WATER
ATMOSPHERIC
EXPOSURE
PI0

All Related Versions

Version 1, 1998-06-16, ArXiv
Published version: Physical Review Letters, 81 (16), 3319.

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