Measurements of atmospheric muon spectra at mountain altitude
T. Sanuki, M. Fujikawa, K. Abe, K. Anraku, Y. Asaoka, H. Fuke, S. Haino, M. Imori, K. Izumi, T. Maeno, Y. Makida, N. Matsui, H. Matsumoto, H. Matsunaga, M. Motoki, J. Nishimura, M. Nozaki, S. Orito, M. Sasaki, Y. Shikaze, T. Sonoda, J. Suzuki, K. Tanaka, Y. Toki, A. Yamamoto, Y. Yamamoto, K. Yamato, T. Yoshida, K. Yoshimura
Abstract
We report new measurements of the atmospheric muons at mountain altitude. The measurement was carried out with the BESS detector at the top of Mt. Norikura, Japan. The altitude is 2,770 m above sea level. Comparing our results and predictions given by some interaction models, a further appropriate model has been investigated. These studies would improve accuracy of atmospheric neutrino calculations.
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