The Highest energy particles in the universe: The Mystery and its possible solutions
Oct, 200110 pages
Part of Physics in collision. Proceedings, 21st International Conference, PIC'01, Seoul, Korea, June 28-30, 2001, 16
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- astro-ph/0110401 [astro-ph]
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- ARCETRI-10-2001
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Abstract: (arXiv)
The universe should be dark at energies exceeding eV. This simple but solid prediction of our best known particle physics is not confirmed by observations, that seem to suggest a quite different picture. Numerous events have in fact been detected in this energy region, with spectra and anisotropy features that defy many conventional and unconventional explanations. Is there a problem with known physics or is this a result of astrophysical uncertainties? Here we try to answer these questions, in the light of present observations, while discussing which information future observations may provide on this puzzling issue.- talk: Seoul 2001/06/28
- cosmic radiation: particle source
- GZK effect
- cosmic radiation: flux
- cosmic radiation: anisotropy
- cosmic radiation: production
- cosmic radiation: acceleration
- defect: topological
- numerical calculations: interpretation of experiments
- bibliography
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