High‐Energy Neutrino Astronomy Using Upward‐going Muons in Super‐Kamiokande I

K. Abe, J. Hosaka, T. Iida, K. Ishihara, J. Kameda, Y. Koshio, A. Minamino, C. Mitsuda, M. Miura, S. Moriyama, M. Nakahata, Y. Obayashi (+126 others)
2006 Astrophysical Journal  
We present the results from several studies used to search for astrophysical sources of high-energy neutrinos using the Super-Kamiokande-I (April 1996 to July 2001) neutrino-induced upward-going muon data. The data set consists of 2359 events with minimum energy 1.6 GeV, of which 1892 are through-going and 467 stop within the detector. The results of several independent analyses are presented, including searches for point sources using directional and temporal information and a search for
more » ... ures of cosmic-ray interactions with the interstellar medium in the upward-going muons. No statistically significant evidence for point sources or any diffuse flux from the plane of the galaxy was found, so specific limits on fluxes from likely point sources are calculated. The 90 which are located in the southern hemisphere and always under the horizon for Super-Kamiokande are 1 4x10^-15 cm^-2 s^-1.
doi:10.1086/508016 fatcat:v7dsa25cw5brtdjv2m2hw633ii