Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande
Publication
, Journal Article
Yamauchi, K; Abe, K; Abe, S; Asaoka, Y; Harada, M; Hayato, Y; Hiraide, K; Hosokawa, K; Ieki, K; Ikeda, M; Kameda, J; Kanemura, Y; Kataoka, Y ...
Published in: Physical Review D
November 7, 2025
We searched for bound neutron decay via n → ν̄ + K0 predicted by the grand unified theories in 0.401 Mton · years exposure of all pure water phases in the Super-Kamiokande detector. About 4.4 times more data than in the previous search have been analyzed by a new method including a spectrum fit to kaon invariant mass distributions. No significant data excess has been observed in the signal regions. As a result of this analysis, we set a lower limit of 7.8 × 1032 years on the neutron lifetime at a 90% confidence level.
Duke Scholars
Published In
Physical Review D
DOI
EISSN
2470-0029
ISSN
2470-0010
Publication Date
November 7, 2025
Volume
112
Issue
9
Start / End Page
1 / 13
Citation
APA
Chicago
ICMJE
MLA
NLM
Yamauchi, K., Abe, K., Abe, S., Asaoka, Y., Harada, M., Hayato, Y., … Gonin, M. (2025). Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande. Physical Review D, 112(9), 1–13. https://doi.org/10.1103/thqt-8fp1
Yamauchi, K., K. Abe, S. Abe, Y. Asaoka, M. Harada, Y. Hayato, K. Hiraide, et al. “Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande.” Physical Review D 112, no. 9 (November 7, 2025): 1–13. https://doi.org/10.1103/thqt-8fp1.
Yamauchi K, Abe K, Abe S, Asaoka Y, Harada M, Hayato Y, et al. Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande. Physical Review D. 2025 Nov 7;112(9):1–13.
Yamauchi, K., et al. “Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande.” Physical Review D, vol. 112, no. 9, Nov. 2025, pp. 1–13. Scopus, doi:10.1103/thqt-8fp1.
Yamauchi K, Abe K, Abe S, Asaoka Y, Harada M, Hayato Y, Hiraide K, Hosokawa K, Ieki K, Ikeda M, Kameda J, Kanemura Y, Kataoka Y, Miki S, Mine S, Miura M, Moriyama S, Nakahata M, Nakayama S, Noguchi Y, Pronost G, Sato K, Sekiya H, Shimizu K, Shinoda R, Shiozawa M, Suzuki Y, Takeda A, Takemoto Y, Tanaka H, Yano T, Itow Y, Kajita T, Nishijima R, Okumura K, Tashiro T, Tomiya T, Wang X, Fernandez P, Labarga L, Samudio D, Zaldivar B, Pointon BW, Yanagisawa C, Kearns E, Mirabito J, Wan L, Wester T, Bian J, Cortez B, Griskevich NJ, Jiang Y, Smy MB, Sobel HW, Takhistov V, Yankelevich A, Hill J, Jang MC, Lee SH, Moon DH, Park RG, Yang BS, Bodur B, Scholberg K, Walter CW, Beauchêne A, Drapier O, Ershova A, Mueller TA, Santos AD, Paganini P, Quach C, Rogly R, Nakamura T, Jang JS, Litchfield RP, Machado LN, Soler FJP, Learned JG, Choi K, Iovine N, Tiwari D, Cao S, Anthony LHV, Martin D, Prouse NW, Scott M, Uchida Y, Berardi V, Calabria NF, Catanesi MG, Ospina N, Radicioni E, Langella A, De Rosa G, Collazuol G, Feltre M, Mattiazzi M, Ludovici L, Gonin M. Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande. Physical Review D. 2025 Nov 7;112(9):1–13.
Published In
Physical Review D
DOI
EISSN
2470-0029
ISSN
2470-0010
Publication Date
November 7, 2025
Volume
112
Issue
9
Start / End Page
1 / 13