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  • Search for Diffuse Astrophy...
    Swanson, M. E. C; Abe, K; Hosaka, J; Iida, T; Ishihara, K; Kameda, J; Minamino, A; Mitsuda, C; Nakahata, M; Obayashi, Y; Ogawa, H; Shiozawa, M; Suzuki, Y; Ueshima, K; Higuchi, I; Ishitsuka, M; Kajita, T; Kaneyuki, K; Mitsuka, G; Nakayama, S; Nishino, H; Okada, A; Okumura, K; Saji, C; Takenaga, Y; Desai, S; Kearns, E; Litos, M; Raaf, J. L; Sulak, L. R; Wang, W; Goldhaber, M; Casper, D; Cravens, J. P; Dunmore, J; Kropp, W. R; Smy, M. B; Sobel, H. W; Vagins, M. R; Hill, J. E; Jang, J. S; Kim, J. Y; Lim, I. T; Tanimoto, N; Walter, C. W; Wendell, R; Ellsworth, R. W; Tasaka, S; Learned, J. G; Hayato, Y; Ichikawa, A. K; Ishida, T; Ishii, T; Iwashita, T; Kobayashi, T; Nakamura, K; Nitta, K; Oyama, Y; Totsuka, Y; Hasegawa, M; Kato, I; Maesaka, H; Nakaya, T; Sato, H; Yokoyama, M; Haines, T. J; Dazeley, S; Svoboda, R; Sullivan, G. W; Mahn, K. B. M; Habig, A; Itow, Y; Koike, T; Jung, C. K; Kobayashi, K; Malek, M; McGrew, C; Terri, R; Yanagisawa, C; Tamura, N; Sakuda, M; Kuno, Y; Kim, S. B; Yang, B. S; Yoo, J; Choi, Y; Seo, H. K; Inoue, K; Ishii, H; Nishijima, K; Ishino, H; Kielczewska, D; Zalipska, J; Berns, H. G; Gran, R; Shiraishi, K. K; Stachyra, A; Thrane, E; Washburn, K; Wilkes, R. J

    The Astrophysical journal, 11/2006, Letnik: 652, Številka: 1
    Journal Article

    Many astrophysical models predict a diffuse flux of high-energy neutrinos from active galactic nuclei and other extragalactic sources. At muon energies above 1 TeV, the upward-going muon flux induced by neutrinos from active galactic nuclei is expected to exceed the flux due to atmospheric neutrinos. We have performed a search for this astrophysical neutrino flux by looking for upward-going muons in the highest energy data sample from the Super-Kamiokande detector using 1679.6 live days of data. We found one extremely high energy upward-going muon event, compared with an expected atmospheric neutrino background of 0.46 c 0.23 events. Using this result, we set an upper limit on the diffuse flux of upward-going muons due to neutrinos from astrophysical sources in the muon energy range 3.16-100 TeV.