Probing the variation of relic neutrino masses with extremely high-energy cosmic neutrinos

Abstract

We analyze the prospects for testing the cosmic neutrino background and its interpretation as source of Neutrino Dark Energy with the radio telescope LOFAR.

Comments: 7 pages, 5 figures, To appear in the proceedings of the Workshop on Exotic Physics with Neutrino Telescopes, Uppsala, Sweden, 20-22 Sep 2006