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arxiv: hep-ph/9903542 · v1 · submitted 1999-03-31 · ✦ hep-ph · astro-ph

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Ultra High Energy Cosmic Rays and Inflation Relics

Vadim A. Kuzmin , Igor I. Tkachev
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classification ✦ hep-ph astro-ph
keywords cosmiccreationinflationraysbeyondcut-offdefectsenergies
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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 formation of topological defects. We review both possibilities.

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  1. Nonthermal leptogenesis via cosmological gravitational particle production is tested by inflationary gravitational waves

    hep-ph 2026-05 unverdicted novelty 5.0

    Certain inflation models produce right-handed neutrinos via gravitational effects sufficient for leptogenesis to explain the baryon asymmetry, testable by inflationary gravitational waves.