Study of the Intermolecular Potentials for Hydrogen–Noble Gas Pairs via Molecular Beam Differential Scattering Measurements

Abstract

Differential collision cross sections for H 2 –noble gas pairs have been measured and analyzed via a best fit procedure. The data are well described by Lennard–Jones (12,6) (LJ) and Buckingham–Corner (BC) potentials and yield model independent values for σ, the location of the zero of the potential. For H 2 –Ne, H 2 –Ar, and H 2 –Kr, σ values are respectively 2.85, 3.07, and 3.21 Å, with uncertainties [Formula: see text].