Incoherent scattering function in simple classical liquids

Abstract

Presents a microscopic theory to calculate the incoherent scattering functions S s (qw) in simple classical liquids. The halfwidth at half maximum omega 1 2/(q), of this function is calculated for liquid argon and rubidium, and the results are compared with corresponding MD results. The observed oscillatory behaviour in Delta (q)= omega 1 2/(q)/Dq 2 , with D with diffusion constant, is explained in terms of the physical processes in the medium surrounding the self-particle.