Ultrahigh-energy cosmic rays and symmetries of space-time
Dec, 20005 pages
Published in:
- Gen.Rel.Grav. 34 (2002) 707-713
e-Print:
- astro-ph/0012462 [astro-ph]
Report number:
- DF-IST-6-2000
View in:
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Abstract: (arXiv)
High energy cosmic rays allow probing phenomena that are inacessible to accelerators. Observation of cosmic rays, presumebly protons, with energies beyond , the so-called Greisen-Zatsepin-Kuzmin (GZK) cut-off, give origin to two puzzles: How do particles accelerate to such energies ? Are their sources within from Earth, or Lorentz invariance is actually a broken symmetry ?Note:
- Comment, 5 pages, plain Latex Report-no: DF/IST-6.2000
- p: cosmic radiation
- cosmic radiation: acceleration
- cosmic radiation: particle source
- violation: Lorentz
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