Cosmic Rays above 10 14 eV
نویسنده
چکیده
We briefly review the status of cosmic ray studies between 10 14 eV and the highest observed energies, namely a few times 10 20 eV. Because of the rather low incident fluxes in this energy range, the studies mostly rely on ground based, large aperture detectors reconstructing the cosmic ray's properties through the detection of the air-showers they generate by interacting with the atmosphere. We stress the fact that many issues such as the chemical composition of the cosmic rays, their acceleration mechanisms, the structures displayed in their energy spectrum are mostly open questions which may be answered by the next generation of experiments.
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