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Magnetic Monopoles as the Highest Energy Cosmic Ray Primaries

Thomas W. Kephart, Thomas J. Weiler

astro-pharXiv:astro-ph/9505134

Abstract

We suggest that the highest energy 1020 eV cosmic ray primaries may be relativistic magnetic monopoles. Motivations for this hypothesis are that conventional primaries are problematic, while monopoles are naturally accelerated to E 1020 eV by galactic magnetic fields. By matching the cosmic monopole production mechanism to the observed highest energy cosmic ray flux we estimate the monopole mass to be 10101 GeV.

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