Search for proton decay via p -> mu(+) K-0 in 0.37 megaton-years exposure of Super-Kamiokande

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,G. D. Megias,P. Fernandez, L. Labarga,N. Ospina, B. Zaldivar, B. W. Pointon,E. Kearns,J. L. Raaf, L. Wan, T. Wester,J. Bian,N. J. Griskevich, W. R. Kropp,S. Locke,M. B. Smy, H. W. Sobel, V Takhistov, A. Yankelevich,J. Hill,J. Y. Kim,I. T. Lim,R. G. Park,B. Bodur,K. Scholberg,C. W. Walter,L. Bernard,A. Coffani, O. Drapier,S. El Hedri,A. Giampaolo,Th A. Mueller,A. D. Santos, P. Paganini,B. Quilain,T. Ishizuka,T. Nakamura,J. S. Jang,J. G. Learned,K. Choi,S. Cao, L. H. Anthony,D. Martin,M. Scott,A. A. Sztuc, Y. Uchida,V Berardi,M. G. Catanesi,E. Radicioni,N. F. Calabria,L. N. Machado,G. De Rosa,G. Collazuol,F. Iacob,M. Lamoureux,M. Mattiazzi,L. Ludovici, M. Gonin,G. Pronost, C. Fujisawa,Y. Maekawa,Y. Nishimura,M. Friend, T. Hasegawa, T. Ishida, T. Kobayashi,M. Jakkapu,T. Matsubara,T. Nakadaira, K. Nakamura, Y. Oyama,K. Sakashita,T. Sekiguchi,T. Tsukamoto,T. Boschi,F. Di Lodovico,J. Gao,A. Goldsack,T. Katori, J. Migenda,M. Taani,Z. Xie,S. Zsoldos, Y. Kotsar,H. Ozaki,A. T. Suzuki, Y. Takeuchi, S. Yamamoto,C. Bronner,J. Feng,T. Kikawa,M. Mori, T. Nakaya,R. A. Wendell,K. Yasutome,S. J. Jenkins,N. McCauley,P. Mehta,K. M. Tsui, A. Tarrant, Y. Fukuda, Y. Itow,H. Menjo,K. Ninomiya,J. Lagoda,S. M. Lakshmi,M. Mandal,P. Mijakowski,Y. S. Prabhu,J. Zalipska,M. Jia,J. Jiang,C. K. Jung,M. J. Wilking,C. Yanagisawa,M. Harada, H. Ishino,S. Ito,H. Kitagawa,Y. Koshio,W. Ma, F. Nakanishi,S. Sakai,G. Barr,D. Barrow,L. Cook,S. Samani,D. Wark,A. Holin,F. Nova,J. Y. Yang,M. Malek, J. M. McElwee, O. Stone, M. D. Thiesse,L. F. Thompson, H. Okazawa,S. B. Kim, E. Kwon,J. W. Seo,I Yu,A. K. Ichikawa, K. D. Nakamura,S. Tairafune, K. Nishijima, M. Koshiba,K. Iwamoto,K. Nakagiri, Y. Nakajima, S. Shima, N. Taniuchi,M. Yokoyama,K. Martens,P. de Perio, M. R. Vagins, M. Kuze, S. Izumiyama, M. Inomoto, M. Ishitsuka,H. Ito,T. Kinoshita, Y. Ommura,N. Shigeta, M. Shinoki,T. Suganuma, K. Yamauchi,J. F. Martin,H. A. Tanaka,T. Towstego,R. Akutsu, V Gousy-Leblanc,M. Hartz,A. Konaka,X. Li,N. W. Prouse,S. Chen, B. D. Xu,B. Zhang,M. Posiadala-Zezula,S. B. Boyd,D. Hadley,M. Nicholson,M. O'Flaherty, B. Richards,A. Ali,B. Jamieson,Ll Marti,A. Minamino,G. Pintaudi,S. Sano,S. Suzuki,K. Wada

PHYSICAL REVIEW D(2022)

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摘要
We searched for proton decay via p -> mu(+) K-0 Mton center dot years of data collected between 1996 and 2018 from the Super-Kamiokande water Cherenkov experiment. The selection criteria were defined separately for K-S(0) and K-L(0) 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 center dot years of exposure and uses an improved event reconstruction, we set a lower limit of 3.6 x 10(33) years on the proton lifetime.
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