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I study the possibility of probing Ultra-High Energy (UHE from now on) darkmatter particles (>10$^8$ GeV) due to the decay of superheavy dark matter viadetection of UHE neutrino signatures from the earth core. The UHE WIMP eventrates are estimated at the energies of 100 PeV, and 1 EeV, 10 EeV, 100 EeV and1 ZeV in JEM-EUSO and at the energy of 1 ZeV in IceCube, respectively. Thediffuse neutrino contaminations are also roughly estimated in JEM-EUSO andIceCube. I found that the extreme energy WIMPs can be detected by JEM-EUSOabove 1 EeV and by IceCube above 1 ZeV in the $\chi$ mass range of10GeV-200GeV.

Search for Ultra-High Energy WIMPs by detecting neutrino signatures from the earth core