Towards Determination of the Initial Flavor Composition of Ultrahigh-energy Neutrino Fluxes with Neutrino Telescopes


We propose a simple but useful parametrization of the flavor composition of ultrahigh-energy neutrino fluxes produced from distant astrophysical sources: φe : φμ : φτ = sin 2 ξ cos2 ζ : cos2 ξ cos2 ζ : sin ζ. We show that it is possible to determine or constrain ξ and ζ by observing two independent neutrino flux ratios at the second-generation neutrino… (More)


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