Neutron tagging following atmospheric neutrino events in a water Cherenkov detector

Abe, K. et al. (2022) Neutron tagging following atmospheric neutrino events in a water Cherenkov detector. Journal of Instrumentation, 17(10), P10029. (doi: 10.1088/1748-0221/17/10/p10029)

Abstract

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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Litchfield, Dr Phillip
• Authors: Abe, K., Haga, Y., Hayato, Y., Hiraide, K., Ieki, K., Ikeda, M., Imaizumi, S., Iyogi, K., Kameda, J., Kanemura, Y., 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, K.P., McLachlan, T., Okumura, K., Richard, E., Tashiro, T., Wang, R., Xia, J., Megias, G.D., Bravo-Berguño, D., Labarga, L., Zaldivar, B., Goldhaber, M., Blaszczyk, F.d.M., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J.L., Stone, J.L., Sulak, L.R., Sussman, S., Wan, L., Wester, T., Pointon, B.W., Bian, J., Carminati, G., Elnimr, M., Griskevich, N.J., Kropp, W.R., Locke, S., Renshaw, A., Smy, M.B., Sobel, H.W., Takhistov, V., Weatherly, P., Ganezer, K.S., Hartfiel, B.L., Hill, J., Keig, W.E., Hong, N., Kim, J.Y., Lim, I.T., Park, R.G., Akiri, T., Bodur, B., Himmel, A., Li, Z., O'Sullivan, E., Scholberg, K., Walter, C.W., Wongjirad, T., Bernard, L., Coffani, A., Drapier, O., El Hedri, S., Giampaolo, A., Imber, J., Mueller, T.A., Paganini, P., Quilain, B., Ishizuka, T., Nakamura, T., Jang, J.S., Choi, K., Learned, J.G., Matsuno, S., Smith, S.N., Amey, J., Anthony, L.H.V., Litchfield, R. P., Ma, W.Y., Marin, D., Sztuc, A.A., Uchida, Y., Wascko, M.O., Berardi, V., Catanesi, M.G., Intonti, R.A., Radicioni, E., Calabria, N.F., De Rosa, G., Machado, L.N., 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., Molina Sedgwick, S., Taani, M., Zsoldos, S., Abe, K.E., Hasegawa, M., Isobe, Y., Kotsar, Y., Miyabe, H., Ozaki, H., Shiozawa, T., Sugimoto, T., Suzuki, A.T., 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, K., Nakaya, T., Patel, N.D., Suzuki, K., Takahashi, S., Tateishi, K., Wendell, R.A., Yasutome, K., Fernandez, P., McCauley, N., Mehta, P., Pritchard, A., Tsui, K.M., 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, C.K., Li, X., Palomino, J.L., Santucci, G., Vilela, C., Wilking, M.J., 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, J.Y., Cole, A., Jenkins, S.J., Malek, M., McElwee, J.M., Stone, O., Thiesse, M.D., Thompson, L.F., Okazawa, H., Choi, Y., Kim, S.B., Yu, I., Ichikawa, A.K., Nakamura, K., Ito, K., Nishijima, K., Calland, R.G., de Perio, P., Martens, K., Murdoch, M., Vagins, M.R., 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, J.F., Nantais, C.M., Tanaka, H.A., Towstego, T., Akutsu, R., Hartz, M., Konaka, A., Prouse, N.W., Chen, S., Xu, B.D., Zhang, Y., Berkman, S., Tobayama, S., Connolly, K., Wilkes, R.J., Posiadala-Zezula, M., Hadley, D., Richards, B., Jamieson, B., Walker, J., Marti, L., Minamino, A., Okamoto, K., Pintaudi, G., Sano, S., and Sasaki, R.
• College/School: UNSPECIFIED
• Journal Name: Journal of Instrumentation
• Publisher: Institute of Physics Publishing Ltd.
• ISSN: 1748-0221
• ISSN (Online): 1748-0221
• Published Online: 18 October 2022
• Copyright Holders: Copyright © 2022 The Author(s)
• First Published: First published in Journal of Instrumentation
• Publisher Policy: Reproduced under a Creative Commons license