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Title: Search for proton decay via p → μ + K 0 in 0.37 megaton-years exposure of Super-Kamiokande

Journal Article · · Physical Review. D.
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  1. Tokyo Univ. of Science, Chiba (Japan); Super-Kamiokande Collaboration. et al.
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We searched for proton decay via p → μ+ K0 in 0.37 Mton · years of data collected between 1996 and 2018 from the Super-Kamiokande water Cherenkov experiment. The selection criteria were defined separately for K$$^0_S$$ and K$$^0_L$$ channels. No significant event excess has been observed. As a result of this analysis, which extends the previous search by an additional 0.2 Mton · years of exposure and uses an improved event reconstruction, we set a lower limit of 3.6 × 1033 years on the proton lifetime.

Research Organization:
University of California, Irvine, CA (United States)
Sponsoring Organization:
Ministry of Education and Science (MEiN); Ministry of Science, ICT and Future Planning (MSIP); National Natural Science Foundation of China (NSFC); National Research Foundation of Korea (NRF); National Science Foundation (NSF); Natural Sciences and Engineering Research Council (NSERC); Spanish Ministry of Science, Innovation and Universities (MICIU); USDOE
Contributing Organization:
Super-Kamiokande Collaboration
OSTI ID:
2424598
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 7 Vol. 106; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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