Ultrahigh-energy cosmic rays, superheavy long-lived particles, and matter creation after inflation
نویسندگان
چکیده
منابع مشابه
Ultra - High Energy Cosmic Rays , Superheavy Long - Living Particles , and Matter Creation after Inflation
The highest energy cosmic rays, above the Greisen–Zatsepin–Kuzmin cut-off of cosmic ray spectrum, may be produced in decays of superheavy long-living X-particles. We conjecture that these particles may be produced naturally in the early Universe from vacuum fluctuations during inflation and may constitute a considerable fraction of Cold Dark Matter. We predict a new cut-off in the UHE cosmic ra...
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ژورنال
عنوان ژورنال: Journal of Experimental and Theoretical Physics Letters
سال: 1998
ISSN: 0021-3640,1090-6487
DOI: 10.1134/1.567858