Ultrahigh energy cosmic rays

@article{LetessierSelvon2011UltrahighEC,
  title={Ultrahigh energy cosmic rays},
  author={Antoine Letessier-Selvon and Todor Stanev},
  journal={Reviews of Modern Physics},
  year={2011},
  volume={83},
  pages={907-942}
}
This is a review of the most resent results from the investigation of the ultrahigh energy cosmic rays, particles of energy exceeding ${10}^{18}\text{ }\text{ }\mathrm{eV}$. After a general introduction to the topic and a brief review of the lower energy cosmic rays and the detection methods, the two most recent experiments, the High Resolution Fly's Eye and the Southern Auger Observatory, are described. Results from these two experiments on the cosmic ray energy spectrum, the chemical… 

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