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Abe, K, Haga, Y, Hayato, Y, Hiraide, K, Ieki, K, Ikeda, M, Imaizumi, S, Iyogi, K, Kameda, J, Kanemura, Y et al (show 297 more authors) , Kataoka, Y, Kato, Y, Kishimoto, Y, Miki, S, Mine, S, Miura, M, Mochizuki, T, Moriyama, S, Nagao, Y, Nakahata, M, Nakajima, T, Nakano, Y, Nakayama, S, Okada, T, Okamoto, K, Orii, A, Sato, K, Sekiya, H, Shiozawa, M, Sonoda, Y, Suzuki, Y, Takeda, A, Takemoto, Y, Takenaka, A, Tanaka, H, Tasaka, S, Tomura, T, Ueno, K, Watanabe, S, Yano, T, Yokozawa, T, Han, S, Irvine, T, Kajita, T, Kametani, I, Kaneyuki, K, Lee, KP, McLachlan, T, Okumura, K, Richard, E, Tashiro, T, Wang, R, Xia, J, Megias, GD, Bravo-Berguno, D, Labarga, L, Zaldivar, B, Goldhaber, M, Blaszczyk, FDM, Gustafson, J, Kachulis, C, Kearns, E, Raaf, JL, Stone, JL, Sulak, LR, Sussman, S, Wan, L, Wester, T, Pointon, BW, Bian, J, Carminati, G, Elnimr, M, Griskevich, NJ, Kropp, WR, Locke, S, Renshaw, A, Smy, MB, Sobel, HW, Takhistov, V, Weatherly, P, Ganezer, KS, Hartfiel, BL, Hill, J, Keig, WE, Hong, N, Kim, JY, Lim, IT, Park, RG, Akiri, T, Bodur, B, Himmel, A, Li, Z, O'Sullivan, E, Scholberg, K, Walter, CW, Wongjirad, T, Bernard, L, Coffani, A, Drapier, O, El Hedri, S, Giampaolo, A, Imber, J, Mueller, Th A, Paganini, P, Quilain, B, Ishizuka, T, Nakamura, T, Jang, JS, Choi, K, Learned, JG, Matsuno, S, Smith, SN, Amey, J, Anthony, LHV, Litchfield, RP, Ma, WY, Marin, D, Sztuc, AA, Uchida, Y, Wascko, MO, Berardi, V, Catanesi, MG, Intonti, RA, Radicioni, E, Calabria, NF, De Rosa, G, Machado, LN, Collazuol, G, Iacob, F, Lamoureux, M, Ospina, N, Ludovici, L, Gonin, M, Pronost, G, Maekawa, Y, Nishimura, Y, Cao, S, Friend, M, Hasegawa, T, Ishida, T, Ishii, T, Jakkapu, M, Kobayashi, T, Matsubara, T, Nakadaira, T, Nakamura, K, Oyama, Y, Sakashita, K, Sekiguchi, T, Tsukamoto, T, Boschi, T, Di Lodovico, F, Migenda, J, Sedgwick, S Molina, Taani, M, Zsoldos, S, Abe, KE, Hasegawa, M, Isobe, Y, Kotsar, Y, Miyabe, H, Ozaki, H, Shiozawa, T, Sugimoto, T, Suzuki, AT, Takeuchi, Y, Yamamoto, S, Ali, A, Ashida, Y, Bronner, C, Feng, J, Hayashino, T, Hiraki, T, Hirota, S, Huang, K, Jiang, M, Kikawa, T, Mori, M, Murakami, A, Nakamura, Ke, Nakaya, T, Patel, ND, Suzuki, K, Takahashi, S, Tateishi, K, Wendell, RA, Yasutome, K, Fernandez, P, McCauley, N 
ORCID: 0000-0002-5982-5125, Mehta, P, Pritchard, A, Tsui, KM, Fukuda, Y, Itow, Y, Menjo, H, Mitsuka, G, Murase, M, Muto, F, Niwa, T, Suzuki, T, Tsukada, M, Frankiewicz, K, Mijakowski, P, Hignight, J, Jiang, J, Jung, CK, Li, X, Palomino, JL, Santucci, G, Vilela, C, Wilking, MJ, Yanagisawa, C, Fukuda, D, Hagiwara, K, Harada, M, Horai, T, Ishino, H, Ito, S, Kayano, T, Kibayashi, A, Kitagawa, H, Koshio, Y, Ma, W, Mori, T, Nagata, H, Piplani, N, Sakai, S, Sakuda, M, Takahira, Y, Xu, C, Yamaguchi, R, Kuno, Y, Barr, G, Barrow, D, Cook, L, Goldsack, A, Samani, S, Simpson, C, Wark, D, Nova, F, Tacik, R, Yang, JY, Cole, A, Jenkins, SJ ORCID: 0000-0002-0982-8141, Malek, M, McElwee, JM, Stone, O, Thiesse, MD, Thompson, LF, Okazawa, H, Choi, Y, Kim, SB, Yu, I, Ichikawa, AK, Nakamura, K, Ito, K, Nishijima, K, Calland, RG, de Perio, P, Martens, K, Murdoch, M, Vagins, MR, Koshiba, M, Totsuka, Y, Iwamoto, K, Nakajima, Y, Ogawa, N, Suda, Y, Yokoyama, M, Hamabe, D, Izumiyama, S, Kuze, M, Okajima, Y, Tanaka, M, Yoshida, T, Inomoto, M, Ishitsuka, M, Ito, H, Matsumoto, R, Ohta, K, Shinoki, M, Martin, JF, Nantais, CM, Tanaka, HA, Towstego, T, Akutsu, R, Hartz, M, Konaka, A, Prouse, NW, Chen, S, Xu, BD, Zhang, Y, Berkman, S, Tobayama, S, Connolly, K, Wilkes, RJ, Posiadala-Zezula, M, Hadley, D, Richards, B, Jamieson, B, Walker, J, Marti, Ll, Minamino, A, Okamoto, K, Pintaudi, G, Sano, S and Sasaki, R
(2022)
Neutron tagging following atmospheric neutrino events in a water Cherenkov detector.
JOURNAL OF INSTRUMENTATION, 17 (10).
P10029-P10029.
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Abstract
<jats:title>Abstract</jats:title>
<jats:p>We present the development of neutron-tagging techniques in
Super-Kamiokande IV using a neural network analysis. The detection
efficiency of neutron capture on hydrogen is estimated to be 26%,
with a mis-tag rate of 0.016 per neutrino event. The uncertainty of
the tagging efficiency is estimated to be 9.0%. Measurement of the
tagging efficiency with data from an Americium-Beryllium calibration
agrees with this value within 10%. The tagging procedure was
performed on 3,244.4 days of SK-IV atmospheric neutrino data,
identifying 18,091 neutrons in 26,473 neutrino events. The fitted
neutron capture lifetime was measured as 218±9 μs.</jats:p>
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