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Ultra-High Energy Cosmic Rays: The Annihilation of Super-Heavy Relics
Pasquale Blasi, Rainer Dick, Edward W. Kolb
We investigate the possibility that ultra-high energy cosmic rays (UHECRs) originate from the annihilation of relic superheavy (SH) dark matter in the Galactic halo. In order to fi…
Enhanced signal of astrophysical tau neutrinos propagating through Earth
John F. Beacom, Patrick Crotty, Edward W. Kolb
Earth absorbs $\nue$ and $\numu$ of energies above about 100 TeV. As is well-known, although $\nutau$ will also disappear through charged-current interactions, the $\nutau$ flux wi…
Ultra-high energy cosmic rays from annihilation of superheavy dark matter
Pasquale Blasi, Rainer Dick, Edward W. Kolb
We consider the possibility that ultra-high energy cosmic rays originate from the annihilation of relic superheavy dark-matter particles. We find that a cross section of <sigma_A v…