Francis Halzen is the Hilldale and Gregory Breit Distinguished Professor of Physics at the University Wisconsin-Madison and principal investigator for the IceCube Neutrino Observatory. A theoretician studying problems at the interface of particle physics, astrophysics, and cosmology, Halzen has been working since 1987 on the AMANDA experiment, a first-generation neutrino telescope at the South Pole. AMANDA observations represent a proof of concept for IceCube, a recently completed kilometer-scale observatory that peers through the earth to open a new window onto the universe. Like its predecessor, AMANDA, IceCube searches for neutrinos from the most violent astrophysical sources: events like exploding stars, gamma ray bursts, and cataclysmic phenomena involving black holes and neutron stars. The IceCube telescope is a powerful tool to search for dark matter, and could reveal the new physical processes associated with the enigmatic origin of the highest energy particles in nature.
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