Robust flavor equalization of cosmic neutrino flux by quasi bi-maximal mixing
D. V. Ahluwalia, C. A. Ortiz, G. Z. Adunas
Abstract
For high energy cosmic neutrinos Athar, Jezabek, and Yasuda (AJY) have recently shown that the existing data on neutrino oscillations suggests that cosmic neutrino flux at the AGN/GRB source, F(nue):F(numu):F(nutau) approx 1:2:0, oscillates to F(nue):F(numu):F(nutau) approx 1:1:1. These results can be confirmed at AMANDA, Baikal, ANTARES and NESTOR, and other neutrino detectors with a good flavor resolution. Here, we re-derive the AJY result from quasi bi-maximal mixing, and show that observation of F(nue):F(nuμ):F(nutau) approx 1:1:1 does not necessarily establish cosmic neutrino flux at the AGN/GRB source to be F(nue):F(numu):F(nutau) approx 1:2:0.
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