| Constraints on Cosmic Neutrino Fluxes from the ANITA Experiment (2005) | |||||||||
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Abstract | |||||||||
| We report new limits on cosmic neutrino fluxes from the test flight of the Antarctic Impulsive Transient Antenna (ANITA) experiment, which completed an 18.4 day flight of a prototype long-duration balloon payload, called ANITA-lite, in early 2004. We search for impulsive events that could be associated with ultra-high energy neutrino interactions in the ice, and derive limits that constrain several models for ultra-high energy neutrino fluxes. We rule out the long-standing Z-burst model as the source for the ultra-high energy cosmic rays.. Comment: 4 pages, 3 figures, accepted to PRL | |||||||||
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