Search for High Energy Neutrinos of All Flavors with AMANDA II

Details Search for High Energy Neutrinos of All Flavors with AMANDA II Search for High Energy Neutrinos of All Flavors with AMANDA II

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....3.1301k&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

We report on a search for electro-magnetic and/or hadronic showers (cascades) induced by a diffuse flux of high energy neutrinos using the data collected with the AMANDA I I detector during the year 2000. The observed event rates are consistent with the expected rate of atmospheric neutrinos and muons. We place preliminary upper limits on a diffuse flux of extraterrestrial electron, tau and muon neutrinos. A flux of neutrinos following a E -2 spectrum and consisting of an equal mix of all flavors is limited to E 2 φ(E ) = 9 × 10-7 GeVcm-2 s-1 sr-1 (for a neutrino energy range 80 TeV to 7 PeV). The presented bounds are ruling out several existing flux predictions for extraterrestrial neutrinos.

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