The Geometric Correlations of Leptonic Mixing Parameters

Figure 11

Ternary plot of the flavor ratio at Earth with the muon-damping decay source. “Standard” denotes the flavor ratio predicted with the leptonic mixing parameters at the level of the global fit data [43]. “ reflection symmetry” denotes the flavor composition that adds a constrain of to the “standard” case. The geometric constraints of correlations I-IV are defined in Table 5 and Equation (7). The 2040 credible region with the pion-decay source based on IceCube and IceCube-Gen2 is taken from Ref. [53]. The credible region with the pion-decay source based on all TeV-PeV neutrino telescopes available in 2040 is taken from Ref. [54].