Measurement of cosmic-ray proton and antiproton spectra at mountain altitude

T. Sanuki, M. Fujikawa, H. Matsunaga, K. Abe, K. Anraku, H. Fuke, S. Haino, M. Imori, K. Izumi, T. Maeno, Y. Makida, N. Matsui, H. Matsumoto, J. Nishimura, M. Nozaki, S. Orito, M. Sasaki, Y. Shikaze, J. Suzuki, K. Tanaka & 5 others A. Yamamoto, Y. Yamamoto, K. Yamato, T. Yoshida, Koji Yoshimura

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Energy spectra of atmospheric secondary cosmic-ray protons and antiprotons were measured at mountain altitude, 2770 m above sea level. We observed more than 105 protons and 102 antiprotons. Our proton spectrum is generally consistent with other previous measurements. The observed antiproton spectrum suggests that the energy loss due to non-annihilation processes is less significant than that assumed in previous model calculations.

Original languageEnglish
Pages (from-to)10-17
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume577
Issue number1-2
DOIs
Publication statusPublished - Dec 18 2003
Externally publishedYes

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antiprotons
mountains
cosmic rays
protons
secondary cosmic rays
sea level
energy spectra
energy dissipation

Keywords

  • Atmospheric cosmic ray
  • Cosmic-ray antiproton
  • Cosmic-ray proton
  • Superconducting spectrometer

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Measurement of cosmic-ray proton and antiproton spectra at mountain altitude. / Sanuki, T.; Fujikawa, M.; Matsunaga, H.; Abe, K.; Anraku, K.; Fuke, H.; Haino, S.; Imori, M.; Izumi, K.; Maeno, T.; Makida, Y.; Matsui, N.; Matsumoto, H.; Nishimura, J.; Nozaki, M.; Orito, S.; Sasaki, M.; Shikaze, Y.; Suzuki, J.; Tanaka, K.; Yamamoto, A.; Yamamoto, Y.; Yamato, K.; Yoshida, T.; Yoshimura, Koji.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 577, No. 1-2, 18.12.2003, p. 10-17.

Research output: Contribution to journalArticle

Sanuki, T, Fujikawa, M, Matsunaga, H, Abe, K, Anraku, K, Fuke, H, Haino, S, Imori, M, Izumi, K, Maeno, T, Makida, Y, Matsui, N, Matsumoto, H, Nishimura, J, Nozaki, M, Orito, S, Sasaki, M, Shikaze, Y, Suzuki, J, Tanaka, K, Yamamoto, A, Yamamoto, Y, Yamato, K, Yoshida, T & Yoshimura, K 2003, 'Measurement of cosmic-ray proton and antiproton spectra at mountain altitude', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 577, no. 1-2, pp. 10-17. https://doi.org/10.1016/j.physletb.2003.10.021
Sanuki, T. ; Fujikawa, M. ; Matsunaga, H. ; Abe, K. ; Anraku, K. ; Fuke, H. ; Haino, S. ; Imori, M. ; Izumi, K. ; Maeno, T. ; Makida, Y. ; Matsui, N. ; Matsumoto, H. ; Nishimura, J. ; Nozaki, M. ; Orito, S. ; Sasaki, M. ; Shikaze, Y. ; Suzuki, J. ; Tanaka, K. ; Yamamoto, A. ; Yamamoto, Y. ; Yamato, K. ; Yoshida, T. ; Yoshimura, Koji. / Measurement of cosmic-ray proton and antiproton spectra at mountain altitude. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2003 ; Vol. 577, No. 1-2. pp. 10-17.
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AU - Sanuki, T.

AU - Fujikawa, M.

AU - Matsunaga, H.

AU - Abe, K.

AU - Anraku, K.

AU - Fuke, H.

AU - Haino, S.

AU - Imori, M.

AU - Izumi, K.

AU - Maeno, T.

AU - Makida, Y.

AU - Matsui, N.

AU - Matsumoto, H.

AU - Nishimura, J.

AU - Nozaki, M.

AU - Orito, S.

AU - Sasaki, M.

AU - Shikaze, Y.

AU - Suzuki, J.

AU - Tanaka, K.

AU - Yamamoto, A.

AU - Yamamoto, Y.

AU - Yamato, K.

AU - Yoshida, T.

AU - Yoshimura, Koji

PY - 2003/12/18

Y1 - 2003/12/18

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AB - Energy spectra of atmospheric secondary cosmic-ray protons and antiprotons were measured at mountain altitude, 2770 m above sea level. We observed more than 105 protons and 102 antiprotons. Our proton spectrum is generally consistent with other previous measurements. The observed antiproton spectrum suggests that the energy loss due to non-annihilation processes is less significant than that assumed in previous model calculations.

KW - Atmospheric cosmic ray

KW - Cosmic-ray antiproton

KW - Cosmic-ray proton

KW - Superconducting spectrometer

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