Abstract
The first string of the neoteric high-energy neutrino telescope IceCube successfully began operating in January 2005. It is anticipated that, upon completion, the new detector will vastly increase the sensitivity and extend the reach of AMANDA to higher energies. A discussion of the IceCube’s discovery potential for extraterrestrial neutrinos, together with the prospects of new physics derived from the ongoing AMANDA research, will be the focus of this paper. Preliminary results of the first antarctic high-energy neutrino telescope AMANDA searching in the muon-neutrino channel for localized and diffuse excess of extraterrestrial neutrinos will be reviewed using data collected between 2000 and 2003. Neutrino flux limits obtained with the all-flavor dedicated ultrahigh energy and cascade analyses will be described. A first neutrino spectrum above 1 TeV in agreement with atmospheric neutrino flux expectations and no extraterrestrial contribution will be presented, followed by a discussion of a limit for neutralino cold dark matter candidates annihilating in the center of the Sun.
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