Abstract
Understanding the interatomic interactions in noble gases remains one of the fundamentalproblems not completely solved to date. From small-angle neutron scattering experiments itis well-known that three-body forces exist and cannot be neglected. On the theoretical side,semi-analytic and simulation methods have been used to reveal the nature of thesemany-body interactions. The purpose of the present work is to provide an overview of thedifferent three-body contributions to the interactions and their relative importance indescribing the structural and thermodynamic properties for noble gases by means of theintegral equation theory and molecular dynamics simulations. We examine the relevanceof the effective state-dependent pair potential in this framework, as well as theself-consistency problem that we are faced with in the integral equation theory.
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