Recursive determination of phase shifts for screened Coulomb potentials
arXiv:1801.02041 · doi:10.1088/2399-6528/aaa4e4
Abstract
In the calculation of hot-plasma atomic structure, the continuum wavefunctions are characterized by phase shifts, which therefore determine the scattering cross-sections. In this short paper, we propose a recurrence relation for the phase shifts in the case of a particular type of parametric potentials widely used in atomic-structure codes. These potentials have to be linear combinations of static screened Coulomb potentials (Yukawa-type potentials) multiplied by polynomial functions.
submitted to Journal of Physics Communications