Differential elastic electron scattering

We present the energy dependence of electron–argon and electron–krypton differential cross sections for elastic scattering, discuss their general characteristics, and compare them with existing equivalent data on positron scattering. The present measurements were stimulated by corresponding positron–heavy rare-gas-atom results. Our first aim is to provide a set of data that can be directly compared with the data on positron scattering and hence possibly contribute to the understanding of structures in that data.