Measurements of Proton, Helium and Muon Spectra at Small Atmospheric Depths with the BESS Spectrometer

Authors :: Abe, K.
Sanuki, T.
Anraku, K.
Asaoka, Y.
Fuke, H.
Haino, S.
Ikeda, N.
Imori, M.
Izumi, K.
Maeno, T.
Makida, Y.
Matsuda, S.
Matsui, N.
Matsukawa, T.
Matsumoto, H.
Mitchell, J. W.
Moiseev, A. A.
Nishimura, J.
Nozaki, M.
Orito, S.
Ormes, J. F.
Sasaki, M.
Seo, E. S.
Shikaze, Y.
Sonoda, T.
Streitmatter, R. E.
Suzuki, J.
Tanaka, K.
Tanizaki, K.
Yamagami, T.
Yamamoto, A.
Yamamoto, Y.
Yamato, K.
Yoshida, T.
Yoshimura, K.
Abe, K.
Sanuki, T.
Anraku, K.
Asaoka, Y.
Fuke, H.
Haino, S.
Ikeda, N.
Imori, M.
Izumi, K.
Maeno, T.
Makida, Y.
Matsuda, S.
Matsui, N.
Matsukawa, T.
Matsumoto, H.
Mitchell, J. W.
Moiseev, A. A.
Nishimura, J.
Nozaki, M.
Orito, S.
Ormes, J. F.
Sasaki, M.
Seo, E. S.
Shikaze, Y.
Sonoda, T.
Streitmatter, R. E.
Suzuki, J.
Tanaka, K.
Tanizaki, K.
Yamagami, T.
Yamamoto, A.
Yamamoto, Y.
Yamato, K.
Yoshida, T.
Yoshimura, K.
Publication Year :: 2003
Abstract: The cosmic-ray proton, helium, and muon spectra at small atmospheric depths of 4.5 -- 28 g/cm^2 were precisely measured during the slow descending period of the BESS-2001 balloon flight. The variation of atmospheric secondary particle fluxes as a function of atmospheric depth provides fundamental information to study hadronic interactions of the primary cosmic rays with the atmosphere.<br />Comment: 21 pages, 11 figures, 4 tables

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