Cosmic-ray spectra of primary protons and high altitude muons deconvolved from observed atmospheric gamma rays

@article{Yoshida2006CosmicraySO,
  title={Cosmic-ray spectra of primary protons and high altitude muons deconvolved from observed atmospheric gamma rays},
  author={K. Yoshida and R. Ohmori and Tooru Kobayashi and Yoshiko Komori and Y. Sato and Jun. Nishimura},
  journal={Physical Review D},
  year={2006},
  volume={74},
  pages={083511}
}
We have observed atmospheric gamma rays from 30 GeV to 8 TeV, using emulsion chambers at balloon altitudes, accumulating the largest total exposure in this energy range to date, S{omega}T{approx}6.66 m{sup 2} sr day. At very high altitudes, with residual overburden only a few g cm{sup -2}, atmospheric gamma rays are mainly produced by a single interaction of primary cosmic rays with overlying atmospheric nuclei. Thus, we can use these gamma rays to study the spectrum of primary cosmic rays and… Expand
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