public class BnJHBVArgon_Analytic
Computes virial coefficients for argon using the analytical expressions
developed by Jaeger, Hellmann, Bich, and Vogel (2011), JCP, 135: 084308.
The authors computed B4-B7 using MSMC. They employed only a pair potential and
a nonadditive trimer potential, the later of which they developed in this work.
The potentials are ab initio.
A first-order quantum correction is included on B2-B4.
The nonadditive trimer contribution to B7 is neglected.