Search for proton decay into three charged leptons in 0.37 megaton-years exposure of the Super-Kamiokande

THE SUPER-KAMIOKANDE COLLABORATION

研究成果査読

12 被引用数 (Scopus)

抄録

A search for proton decay into three charged leptons has been performed by using 0.37 Mton·years of data collected in Super-Kamiokande. All possible combinations of electrons, muons, and their antiparticles consistent with charge conservation were considered as decay modes. No significant excess of events has been found over the background, and lower limits on the proton lifetime divided by the branching ratio have been obtained. The limits range between 9.2×1033 and 3.4×1034 years at 90% confidence level, improving by more than an order of magnitude upon limits from previous experiments. A first limit has been set for the p→μ-e+e+ mode.

本文言語English
論文番号052011
ジャーナルPhysical Review D
101
5
DOI
出版ステータスPublished - 3月 1 2020
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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