Measurements of atmospheric antiprotons

K. Yamato, K. Abe, H. Fuke, S. Haino, Y. Makida, S. Matsuda, H. Matsumoto, J. W. Mitchell, A. A. Moiseev, J. Nishimura, M. Nozaki, S. Orito, J. F. Ormes, T. Sanuki, M. Sasaki, E. S. Seo, Y. Shikaze, R. E. Streitmatter, J. Suzuki, K. TanakaT. Yamagami, A. Yamamoto, T. Yoshida, K. Yoshimura

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We measured atmospheric antiproton spectra in the energy range 0.2 to 3.4 GeV, at sea level and at balloon altitude in the atmospheric depth range 4.5 to 26 g/cm2. The observed energy spectra, including our previous measurements at mountain altitude, were compared with estimated spectra calculated on various assumptions regarding the energy distribution of antiprotons that interacted with air nuclei.

Original languageEnglish
Pages (from-to)475-479
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number4
Publication statusPublished - Jan 19 2006
Externally publishedYes


  • Atmospheric cosmic rays
  • Cosmic-ray antiprotons
  • Superconducting spectrometers

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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