Parameter degeneracy and information loss in inverse flavor mapping for high-energy astrophysical neutrinos

Zi-Qiang Chen, Zhi-zhong Xing, Ye-Ling Zhou

Given a high-energy astrophysical neutrino flux, its source flavor ratios $\eta =\{{\eta }_e^{},{\eta }_{\mu }^{},{\eta }_{\tau }^{}\}$ are correlated with the ones $f=\{f_e^{},f_{\mu }^{},f_{\tau }^{}\}$ measured at…