Ultra High Energy Cosmic Rays and Inflation

Details Ultra High Energy Cosmic Rays and Inflation Ultra High Energy Cosmic Rays and Inflation

1999-01-27

arxiv.org/abs/hep-ph/9901428v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, to appear in "Particle Physics and the Early Universe (COSMO-98)", ed. by David O. Caldwell, American Institute of Ph

Scientific paper

10.1063/1.59435

Two processes of matter creation after inflation: 1) gravitational creation
of superheavy (quasi)stable particles, and 2) non-thermal phase transitions
leading to formation of topological defects, may be relevant to the resolution
of the puzzle of cosmic rays observed with energies beyond GZK cut-off. Both
possibilities are reviewed in this talk.

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