Large scale anisotropy of the cosmic ray muon flux in Kamiokande

K. Munakata, 1 T. Kiuchi, 1 S. Yasue, 1 C. Kato, 1 S. Mori, 1 K. S. Hirata, 2 K. Kihara, 2 Y. Oyama, 2 M. Mori, 3 K. Fujita, 4 S. Hatakeyama, 4 M. Koga, 4 T. Maruyama, 4 A. Suzuki, 4 T. Ishizuka, 5 K. Miyano, 5 H. Okazawa, 5 Y. Fukuda, 6 T. Hayakawa, 6 K. Inoue, 6 K. Ishihara, 6 H. Ishino, 6 S. Joukou, 6 T. Kajita, 6 S. Kasuga, 6 Y. Koshio, 6 T. Kumita, 6,* K. Matsumoto, 6 M. Nakahata, 6 K. Nakamura, 6,† K. Okumura, 6 A. Sakai, 6 M. Shiozawa, 6 J. Suzuki, 6 Y. Suzuki, 6 T. Tomoeda, 6 Y. Totsuka, 6 T. Horiuchi, 7 K. Nishijima, 7 M. Koshiba, 8 T. Suda, 9,‡ A. T. Suzuki, 9 T. Hara, 10 Y. Nagashima, 10 M. Takita, 10 T. Yamaguchi, 10 Y. Hayato, 11 K. Kaneyuki, 11 T. Suzuki, 11 Y. Takeuchi, 11,§ T. Tanimori, 11 S. Tasaka, 12 E. Ichihara, 13 S. Miyamoto, 13 and K. Nishikawa 13 ~Kamiokande Collaboration! Department of Physics, Shinshu University, Nagano 390, Japan National Laboratory for High Energy Physics (KEK), Ibaraki 305, Japan Department of Physics, Miyagi University of Education, Miyagi 980, Japan Faculty of Science, Tohoku University, Miyagi 980, Japan Department of Physics, Niigata University, Niigata 950-21, Japan Institute for Cosmic-Ray Research, University of Tokyo, Tokyo 188, Japan Department of Physics, Tokai University, Kanagawa 259-12, Japan Institute of Research and Development, Tokai University, Tokyo 151, Japan Department of Physics, Kobe University, Hyogo 657, Japan Department of Physics, Osaka University, Osaka 560, Japan Department of Physics, Tokyo Institute of Technology, Tokyo 152, Japan Department of Physics, Gifu University, Gifu 501-11, Japan Institute for Nuclear Study, University of Tokyo, Tokyo 188, Japan ~Received 3 March 1997!