Neutrino flux ratios at neutrino telescopes: The role of uncertainties of neutrino mixing parameters and applications to neutrino decay

Davide Meloni, Tommy Ohlsson

In this paper, we derive simple and general perturbative formulas for the flavor flux ratios $R_{\alpha \beta }={\varphi }_{{\nu }_{\alpha }}/{\varphi }_{{\nu }_{\beta }}$ that could be measured at neutrino telescopes. We discuss in d…