Soft-core mean spherical approximation

Chihara (along with Madden and Rice) extended the Percus Yevick equation for Lennard-Jones systems to provide a soft-core mean spherical approximation, the SMSA (Refs 1,2 and 3)

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References

1. [PTP_1973_050_0409]
2. [PTP_1973_050_1156]
3. [JCP_1980_72_04208]