Fig. C.1.
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Performances of the perturbative expansions of the joint PDF 
in the mean-field approximation either for the ξ12 expansion (open blue dots) or the 
expansion (red dots) up to 11th and 10th order, respectively. The comparisons are made for ρ1 = ρ2 = 2 and 
(top panel) and for ρ1 = 0.5, ρ2 = 3.5 and 
(bottom panel) and for ξ12 equalling 0.1, 0.3, 0.5, 0.7, and 0.9.
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