Are topological defects responsible for the 300 EeV cosmic rays?

Details Are topological defects responsible for the 300 EeV cosmic rays? Are topological defects responsible for the 300 EeV cosmic rays?

1996-05-02

arxiv.org/abs/astro-ph/9605006v1

Nucl.Phys.Proc.Suppl. 48 (1996) 485-487

Astronomy and Astrophysics

Astrophysics

3 pages, compressed and uuencoded PostScript (111kb); Nucl. Phys. B., Proc. Suppl., vol 48, in press (TAUP95 Workshop)

Scientific paper

10.1016/0920-5632(96)00299-X

We use of a hybrid matrix--Monte Carlo method to simulate the cascade through the cosmic background radiation initiated by UHE particles and radiation emitted by topological defects. We follow the cascade over cosmological distances and calculate the intensities of hadrons, gamma-rays and neutrinos produced. We compare our results with the observed cosmic ray intensity at 300 EeV and lower energies, and conclude that topological defects are most unlikely to be the origin of the most energetic cosmic ray events.

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