Figure 16: -parameterization. Left panel: 1 and 2 marginalized probability regions for
constant and : the green (shaded) regions are relative to the Reference case, the blue
long-dashed ellipses to the Optimistic case, while the black short-dashed ellipses are the probability
regions for the Pessimistic case. The red dot marks the fiducial model; two alternative models are also
indicated for comparison. Right panel: 1 and 2 marginalized probability regions for the parameters
and , relative to the Reference case (shaded yellow regions), to the Optimistic case (green
long-dashed ellipses), and to the Pessimistic case (black dotted ellipses). Red dots represent the
fiducial model, blue squares mark the DGP while triangles stand for the model. Then, in the
case of -parameterization, one could distinguish these three models (at 95% probability).
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