Interaction potentials Projectiles 6 Atoms 4 Canonical partition function 4 Density functional theory 4 Diffraction 4 Eikonal approximations 4 Few body systems 4 First-order dependence 4 Fluid potentials 4 Gaussian curvatures 4 Grazing incidence 4 Hard walls 4 Interacting particles 4 Interatomic potential 4 Low density 4 Many-body systems 4 Scattering process 4 Spheres 4 Spherical cavities 4 Spherical particle 4 Spherical pores 4 Spherical substrates 4 Square-well 4 Surface properties 4 Surface scattering 4 Surface tension 4 Two particles 4 Zero order 4 Ab initio 2