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 journalArticle

12 Citations (Scopus)

Abstract

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
Volume632
Issue number4
DOIs
Publication statusPublished - Jan 19 2006
Externally publishedYes

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Yamato, K., Abe, K., Fuke, H., Haino, S., Makida, Y., Matsuda, S., Matsumoto, H., Mitchell, J. W., Moiseev, A. A., Nishimura, J., Nozaki, M., Orito, S., Ormes, J. F., Sanuki, T., Sasaki, M., Seo, E. S., Shikaze, Y., Streitmatter, R. E., Suzuki, J., ... Yoshimura, K. (2006). Measurements of atmospheric antiprotons. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 632(4), 475-479. https://doi.org/10.1016/j.physletb.2005.11.042