NASA NTRS · 20040171648
Ultrahigh Energy Cosmic Rays: Old Physics or New Physics?
Abstract
We consider the advantages of and the problems associated with hypotheses to explain the origin of ultrahigh energy cosmic rays (UHECR: E greater than 10 EeV) and the "trans-GZK" cosmic rays (TGZK: E greater than 100 EeV) both through "old physics" (acceleration in cosmic sources) and "new physics" (new particles, topological defects, fat neutrino cross sections, Lorentz invariance violation).
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Stecker, F. W.. 2004-01-01. Ultrahigh Energy Cosmic Rays: Old Physics or New Physics?. https://ntrs.nasa.gov/citations/20040171648
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