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those shown in Table I of Ref. [29]. 

## IV. RESULTS AND DISCUSSIONS 

We start our discussion with an analysis of the critical values of HCAY fluid. Table I presents the reduced critical temperature T ∗ c and density ρ ∗ c for a wide range of κ predicted by both simulations and several theoretical approaches, namely, the S-SCOZA and M-SCOZA described in the previous section, the TPT by Zhou [14], and the equation of state (EOS) by Duh and Mier-Y-Teran [22]. We recall that, as λ is increased, the liquid-vapor critical point becomes metastable with respect to freezing. According to many theoretical and simulation studies [1, 6–8, 10, 11], for λ ≥ 7 the metastable regime has alreday set in. 

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