Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-06-05
Nucl.Phys.Proc.Suppl.97:203-206,2001
Astronomy and Astrophysics
Astrophysics
Talk to be presented at the International Symposium on Very High Energy Cosmic Ray Interactions XI
Scientific paper
10.1016/S0920-5632(01)01264-6
We critically review the common belief that ultrahigh energy cosmic rays are protons or atomic nuclei with masses not exceeding that of iron. We find that heavier nuclei are indeed possible, and discuss possible sources and acceleration mechanisms for such primaries. We also show detailed simulations of extensive air showers produced by ``superheavy'' nuclei, and discuss prospects for their detection in future experiments.
Anchordoqui Luis A.
Dova Maria Teresa
McCauley Thomas P.
Paul Thierry
Reucroft Stephen
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