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Ultra-high-energy cosmic rays and inflation relics |
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| Authors: | Vadim A Kuzmin Igor I Tkachev |
| Institution: | a Institute for Nuclear Research, Russian Academy of Sciences, 60th October Anniversary Prosp. 7a, Moscow 117312, Russia b TH Division, CERN, CH-1211 Geneva 23, Switzerland |
| Abstract: | There are two processes of matter creation after inflation that may be relevant to the resolution of the puzzle of cosmic rays observed with energies beyond GZK cut-off: 1) gravitational creation of superheavy (quasi)stable particles, and 2) non-thermal phase transitions leading to the formation of topological defects. We review both possibilities. |
| Keywords: | Cosmic rays Dark matter Early universe |
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