Search for an excess of events in the Super-Kamiokande detector in the directions of the astrophysical neutrinos reported by the IceCube Collaboration

Abe, K. et al. (2017) Search for an excess of events in the Super-Kamiokande detector in the directions of the astrophysical neutrinos reported by the IceCube Collaboration. Astrophysical Journal, 850(2), 166. (doi: 10.3847/1538-4357/aa951b)

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We present the results of a search in the Super-Kamiokande (SK) detector for excesses of neutrinos with energies above a few GeV that are in the direction of the track events reported in IceCube. Data from all SK phases (SK-I through SK-IV) were used, spanning a period from 1996 April to 2016 April and corresponding to an exposure of 225 kiloton-years. We considered the 14 IceCube track events from a data set with 1347 livetime days taken from 2010 to 2014. We use Poisson counting to determine if there is an excess of neutrinos detected in SK in a 10° search cone (5° for the highest energy data set) around the reconstructed direction of the IceCube event. No significant excess was found in any of the search directions we examined. We also looked for coincidences with a recently reported IceCube multiplet event. No events were detected within a ±500 s time window around the first detected event, and no significant excess was seen from that direction over the lifetime of SK.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Litchfield, Dr Phillip
Authors: Abe, K., Bronner, C., Pronost, G., Hayato, Y., Ikeda, M., Iyogi, K., Kameda, J., Kato, Y., Kishimoto, Y., Marti, L., Miura, M., Moriyama, S., Nakahata, M., Nakano, Y., Nakayama, S., Okajima, Y., Orii, A., Sekiya, H., Shiozawa, M., Sonoda, Y., Takeda, A., Takenaka, A., Tanaka, H., Tasaka, S., Tomura, T., Akutsu, R., Kajita, T., Kaneyuki, K., Nishimura, Y., Okumura, K., Tsui, K. M., Labarga, L., Fernandez, P., Blaszczyk, F. d. M., Gustafson, J., Kachulis, C., Kearns, E., Raaf, J. L., Stone, J. L., Sulak, L. R., Berkman, S., Tobayama, S., Goldhaber, M., Elnimr, M., Kropp, W. R., Mine, S., Locke, S., Weatherly, P., Smy, M. B., Sobel, H. W., Takhistov, V., Ganezer, K. S., Hill, J., Kim, J. Y., Lim, I. T., Park, R. G., Himmel, A., Li, Z., O’Sullivan, E., Scholberg, K., Walter, C. W., Ishizuka, T., Nakamura, T., Jang, J. S., Choi, K., Learned, J. G., Matsuno, S., Smith, S. N., Amey, J., Litchfield, R. P., Ma, W. Y., Uchida, Y., Wascko, M. O., Cao, S., Friend, M., Hasegawa, T., Ishida, T., Ishii, T., Kobayashi, T., Nakadaira, T., Nakamura, K., Oyama, Y., Sakashita, K., Sekiguchi, T., Tsukamoto, T., Abe, K., Hasegawa, M., Suzuki, A. T., Takeuchi, Y., Yano, T., Cao, S. V., Hayashino, T., Hiraki, T., Hirota, S., Huang, K., Jiang, M., Minamino, A., Nakamura, K., Nakaya, T., Quilain, B., Patel, N. D., Wendell, R. A., Anthony, L. H. V., McCauley, N., Pritchard, A., Fukuda, Y., Itow, Y., Murase, M., Muto, F., Mijakowski, P., Frankiewicz, K., Jung, C. K., Li, X., Palomino, J. L., Santucci, G., Vilela, C., Wilking, M. J., Yanagisawa, C., Ito, S., Fukuda, D., Ishino, H., Kibayashi, A., Koshio, Y., Nagata, H., Sakuda, M., Xu, C., Kuno, Y., Wark, D., Lodovico, F. D., Richards, B., Tacik, R., Kim, S. B., Cole, A., Thompson, L., Okazawa, H., Choi, Y., Ito, K., Nishijima, K., Koshiba, M., Totsuka, Y., Suda, Y., Yokoyama, M., Calland, R. G., Hartz, M., Martens, K., Simpson, C., Suzuki, Y., Vagins, M. R., Hamabe, D., Kuze, M., Yoshida, T., Ishitsuka, M., Martin, J. F., Nantais, C. M., Tanaka, H. A., Konaka, A., Chen, S., Wan, L., Zhang, Y., Minamino, A., and Wilkes, R. J.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Astrophysical Journal
Publisher:IOP Publishing on behalf of American Astronomical Society
ISSN (Online):1538-4357
Copyright Holders:Copyright © 2017 The American Astronomical Society
First Published:First published in Astrophysical Journal 850(2):166
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