Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande

(Super-Kamiokande Collaboration); R. Matsumoto; K. Abe; Y. Hayato; K. Hiraide; K. Ieki; M. Ikeda; J. Kameda; Y. Kanemura; R. Kaneshima; Y. Kashiwagi; Y. Kataoka; S. Miki; S. Mine; M. Miura; S. Moriyama; Y. Nakano; M. Nakahata; S. Nakayama; Y. Noguchi; K. Okamoto; K. Sato; H. Sekiya; H. Shiba; K. Shimizu; M. Shiozawa; Y. Sonoda; Y. Suzuki; A. Takeda; Y. Takemoto; A. Takenaka; H. Tanaka; S. Watanabe; T. Yano; S. Han; T. Kajita; K. Okumura; T. Tashiro; T. Tomiya; X. Wang; J. Xia; S. Yoshida; T. Boschi; F. Di Lodovico; J. Gao; A. Goldsack; T. Katori; J. Migenda; M. Taani; Z. Xie; S. Zsoldos

doi:10.1103/PhysRevD.106.072003

Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande

(Super-Kamiokande Collaboration), R. Matsumoto, K. Abe, Y. Hayato, K. Hiraide, K. Ieki, M. Ikeda, J. Kameda, Y. Kanemura, R. Kaneshima, Y. Kashiwagi, Y. Kataoka, S. Miki, S. Mine, M. Miura, S. Moriyama, Y. Nakano, M. Nakahata, S. Nakayama, Y. NoguchiK. Okamoto, K. Sato, H. Sekiya, H. Shiba, K. Shimizu, M. Shiozawa, Y. Sonoda, Y. Suzuki, A. Takeda, Y. Takemoto, A. Takenaka, H. Tanaka, S. Watanabe, T. Yano, S. Han, T. Kajita, K. Okumura, T. Tashiro, T. Tomiya, X. Wang, J. Xia, S. Yoshida, T. Boschi, F. Di Lodovico, J. Gao, A. Goldsack, T. Katori, J. Migenda, M. Taani, Z. Xie, S. Zsoldos

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Abstract

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 KS0 and KL0 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.

Original language	English
Article number	072003
Journal	Physical Review D
Volume	106
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.106.072003
Publication status	Published - 1 Oct 2022

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(Super-Kamiokande Collaboration), Matsumoto, R., Abe, K., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Kameda, J., Kanemura, Y., Kaneshima, R., Kashiwagi, Y., Kataoka, Y., Miki, S., Mine, S., Miura, M., Moriyama, S., Nakano, Y., Nakahata, M., Nakayama, S., ... Zsoldos, S. (2022). Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande. Physical Review D, 106(7), Article 072003. https://doi.org/10.1103/PhysRevD.106.072003

@article{3a67750127da4bb1b80482251ca3ab87,

title = "Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande",

abstract = "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 KS0 and KL0 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.",

author = "{(Super-Kamiokande Collaboration)} and R. Matsumoto and K. Abe and Y. Hayato and K. Hiraide and K. Ieki and M. Ikeda and J. Kameda and Y. Kanemura and R. Kaneshima and Y. Kashiwagi and Y. Kataoka and S. Miki and S. Mine and M. Miura and S. Moriyama and Y. Nakano and M. Nakahata and S. Nakayama and Y. Noguchi and K. Okamoto and K. Sato and H. Sekiya and H. Shiba and K. Shimizu and M. Shiozawa and Y. Sonoda and Y. Suzuki and A. Takeda and Y. Takemoto and A. Takenaka and H. Tanaka and S. Watanabe and T. Yano and S. Han and T. Kajita and K. Okumura and T. Tashiro and T. Tomiya and X. Wang and J. Xia and S. Yoshida and T. Boschi and {Di Lodovico}, F. and J. Gao and A. Goldsack and T. Katori and J. Migenda and M. Taani and Z. Xie and S. Zsoldos",

note = "Funding Information: We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. The Super-Kamiokande experiment has been built and operated from funding by the Japanese Ministry of Education, Culture, Sports, Science and Technology, the U.S. Department of Energy, and the U.S. National Science Foundation. Some of us have been supported by funds from the National Research Foundation of Korea NRF20090083526 (KNRC) funded by the Ministry of Science, ICT, and Future Planning and the Ministry of Education (No. 2018R1D1A1B07049158 and No. 2021R1I1A1A01059559), the Japan Society for the Promotion of Science, the National Natural Science Foundation of China under Grant No. 11620101004, the Spanish Ministry of Science, Universities and Innovation (Grant No. PGC2018-099388-B-I00), the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Scinet and Westgrid consortia of Compute Canada, the National Science Centre (No. UMO-2018/30/E/ST2/00441) and the Ministry of Education and Science (No. DIR/WK/2017/05), Poland, the Science and Technology Facilities Council (STFC) and GridPPP, UK, the European Union{\textquoteright}s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement No. 754496, H2020-MSCA-RISE-2018 JENNIFER2 Grant Agreement No. 822070, and H2020-MSCA-RISE-2019 SK2HK Grant Agreement No. 872549. Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2022",

month = oct,

day = "1",

doi = "10.1103/PhysRevD.106.072003",

language = "English",

volume = "106",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society (APS)",

number = "7",

}

(Super-Kamiokande Collaboration), Matsumoto, R, Abe, K, Hayato, Y, Hiraide, K, Ieki, K, Ikeda, M, Kameda, J, Kanemura, Y, Kaneshima, R, Kashiwagi, Y, Kataoka, Y, Miki, S, Mine, S, Miura, M, Moriyama, S, Nakano, Y, Nakahata, M, Nakayama, S, Noguchi, Y, Okamoto, K, Sato, K, Sekiya, H, Shiba, H, Shimizu, K, Shiozawa, M, Sonoda, Y, Suzuki, Y, Takeda, A, Takemoto, Y, Takenaka, A, Tanaka, H, Watanabe, S, Yano, T, Han, S, Kajita, T, Okumura, K, Tashiro, T, Tomiya, T, Wang, X, Xia, J, Yoshida, S, Boschi, T , Di Lodovico, F , Gao, J , Goldsack, A , Katori, T , Migenda, J , Taani, M , Xie, Z & Zsoldos, S 2022, 'Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande', Physical Review D, vol. 106, no. 7, 072003. https://doi.org/10.1103/PhysRevD.106.072003

TY - JOUR

T1 - Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande

AU - (Super-Kamiokande Collaboration)

AU - Matsumoto, R.

AU - Abe, K.

AU - Hayato, Y.

AU - Hiraide, K.

AU - Ieki, K.

AU - Ikeda, M.

AU - Kameda, J.

AU - Kanemura, Y.

AU - Kaneshima, R.

AU - Kashiwagi, Y.

AU - Kataoka, Y.

AU - Miki, S.

AU - Mine, S.

AU - Miura, M.

AU - Moriyama, S.

AU - Nakano, Y.

AU - Nakahata, M.

AU - Nakayama, S.

AU - Noguchi, Y.

AU - Okamoto, K.

AU - Sato, K.

AU - Sekiya, H.

AU - Shiba, H.

AU - Shimizu, K.

AU - Shiozawa, M.

AU - Sonoda, Y.

AU - Suzuki, Y.

AU - Takeda, A.

AU - Takemoto, Y.

AU - Takenaka, A.

AU - Tanaka, H.

AU - Watanabe, S.

AU - Yano, T.

AU - Han, S.

AU - Kajita, T.

AU - Okumura, K.

AU - Tashiro, T.

AU - Tomiya, T.

AU - Wang, X.

AU - Xia, J.

AU - Yoshida, S.

AU - Boschi, T.

AU - Di Lodovico, F.

AU - Gao, J.

AU - Goldsack, A.

AU - Katori, T.

AU - Migenda, J.

AU - Taani, M.

AU - Xie, Z.

AU - Zsoldos, S.

N1 - Funding Information: We gratefully acknowledge the cooperation of the Kamioka Mining and Smelting Company. The Super-Kamiokande experiment has been built and operated from funding by the Japanese Ministry of Education, Culture, Sports, Science and Technology, the U.S. Department of Energy, and the U.S. National Science Foundation. Some of us have been supported by funds from the National Research Foundation of Korea NRF20090083526 (KNRC) funded by the Ministry of Science, ICT, and Future Planning and the Ministry of Education (No. 2018R1D1A1B07049158 and No. 2021R1I1A1A01059559), the Japan Society for the Promotion of Science, the National Natural Science Foundation of China under Grant No. 11620101004, the Spanish Ministry of Science, Universities and Innovation (Grant No. PGC2018-099388-B-I00), the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Scinet and Westgrid consortia of Compute Canada, the National Science Centre (No. UMO-2018/30/E/ST2/00441) and the Ministry of Education and Science (No. DIR/WK/2017/05), Poland, the Science and Technology Facilities Council (STFC) and GridPPP, UK, the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement No. 754496, H2020-MSCA-RISE-2018 JENNIFER2 Grant Agreement No. 822070, and H2020-MSCA-RISE-2019 SK2HK Grant Agreement No. 872549. Publisher Copyright: © 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2022/10/1

Y1 - 2022/10/1

N2 - 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 KS0 and KL0 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.

AB - 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 KS0 and KL0 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.

UR - http://www.scopus.com/inward/record.url?scp=85142202203&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.106.072003

DO - 10.1103/PhysRevD.106.072003

M3 - Article

AN - SCOPUS:85142202203

SN - 2470-0010

VL - 106

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - 072003

ER -

Search for proton decay via p →μ+K0 in 0.37 megaton-years exposure of Super-Kamiokande

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