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

K. Abe·T. Sanuki·K. Anraku·Y. Asaoka·H. Fuke·S. Haino·N. Ikeda·M. Imori·K. Izumi·T. Maeno·Y. Makida·S. Matsuda·N. Matsui·T. Matsukawa·H. Matsumoto·J. W. Mitchell·A. A. Moiseev·J. Nishimura·M. Nozaki·S. Orito·J. F. Ormes·M. Sasaki·E. S. Seo·Y. Shikaze·T. Sonoda·R. E. Streitmatter·J. Suzuki·K. Tanaka·K. Tanizaki·T. Yamagami·A. Yamamoto·Y. Yamamoto·K. Yamato·T. Yoshida·K. Yoshimura
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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.

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K. Abe, T. Sanuki, K. Anraku, Y. Asaoka, H. Fuke, S. Haino, N. Ikeda, M. Imori, K. Izumi, T. Maeno, Y. Makida, S. Matsuda, N. Matsui, T. Matsukawa, H. Matsumoto, J. W. Mitchell, A. A. Moiseev, J. Nishimura, M. Nozaki, S. Orito, J. F. Ormes, M. Sasaki, E. S. Seo, Y. Shikaze, T. Sonoda, R. E. Streitmatter, J. Suzuki, K. Tanaka, K. Tanizaki, T. Yamagami, A. Yamamoto, Y. Yamamoto, K. Yamato, T. Yoshida, K. Yoshimura. 2003-05-06. Measurements of Proton, Helium and Muon Spectra at Small Atmospheric Depths with the BESS Spectrometer. https://doi.org/10.1016/s0370-2693(03)00676-2

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