Ultra-high Energy Cosmic Rays: a probe into New Physics
Pasquale Blasi
Abstract
The most energetic particles ever detected exceed 1020 eV in energy. Their existence represents at the same time a great challenge for particle physics and astrophysics, and a great promise of providing us for a probe of the validity of the laws of Nature in extreme conditions. We review here the most recent data and the future perspectives for detection of cosmic rays at ultra-high energies, and discuss possible ways of using these data to test the possibility that new Physics and/or new Astrophsyics may be awaiting around the corner.
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