Energy spectra of atmospheric cosmic rays observed with emulsion chambers

M. Akashi, M. Amenomori, E. Konishi, H. Nanjo, Z. Watanabe, M. Ichiju, K. Mizutani, K. Kasahara, Shoji Torii, T. Yuda, T. Shirai, N. Tateyama, T. Taira, I. Mito, M. Shibata, H. Sugimoto, K. Taira, N. Hotta

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The energy spectra of gamma-rays, hadrons and muons in the atmosphere are summarized on the basis of the emulsion chamber experiments at Mt. Fuji and underground. The power indices of the spectra are 1.95±0.05 for gamma-rays and 1.80±0.07 for hadrons at Mt. Fuji in the energy range from 2 TeV to 50 TeV. The underground measurements have confirmed the muon spectrum at sea-level with the index of 2.70±0.10 in the range from 1 TeV to 10 TeV. These spectra of atmospheric cosmic rays are not explained simultaneously on the basis of the concept of scaling so long as the primary spectrum with the normal composition holds up to 1015eV.

Original languageEnglish
Pages (from-to)355-375
Number of pages21
JournalIl Nuovo Cimento A
Volume65
Issue number3
DOIs
Publication statusPublished - 1981 Oct
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics

Cite this

Akashi, M., Amenomori, M., Konishi, E., Nanjo, H., Watanabe, Z., Ichiju, M., Mizutani, K., Kasahara, K., Torii, S., Yuda, T., Shirai, T., Tateyama, N., Taira, T., Mito, I., Shibata, M., Sugimoto, H., Taira, K., & Hotta, N. (1981). Energy spectra of atmospheric cosmic rays observed with emulsion chambers. Il Nuovo Cimento A, 65(3), 355-375. https://doi.org/10.1007/BF02827440