Fig. 4
Collapse of Δ and estimate of α. The observable Δi,t(β,Γ,Ω) is measured for different choices of Ω and of Γ and the related raw data are properly binned over Γ and over Ω. Different symbols correspond to different choices of Ω. The (Γ,Ω) mesh as well as the choice of symbols is the same as in Fig. 3. Different panels correspond to different choices of α: α = 0.2 (a), α = 0.35 (b), α = 0.5 (c), α = 0.7 (d). Our estimate \(\bar \alpha \approx 0.5\) stems from the minimal spread of the curves in c
