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Robust flavor equalization of cosmic neutrino flux by quasi bi-maximal mixing

D. V. Ahluwalia·C. A. Ortiz·G. Z. Adunas
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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(nu_e):F(nu_mu):F(nu_tau) approx 1:2:0, oscillates to F(nu_e):F(nu_mu):F(nu_tau) 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(nu_e):F(nu_μ):F(nu_tau) approx 1:1:1 does not necessarily establish cosmic neutrino flux at the AGN/GRB source to be F(nu_e):F(nu_mu):F(nu_tau) approx 1:2:0.

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D. V. Ahluwalia, C. A. Ortiz, G. Z. Adunas. 2005-08-11. Robust flavor equalization of cosmic neutrino flux by quasi bi-maximal mixing. https://arxiv.org/abs/hep-ph/0006092

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