Differential cross-sections and critical points for elastic scattering of electrons by krypton atoms in the range (2-110)‎ EV by using an optical potential model

الملخص EN

The effect of scattering potential are tested by using the partial wave method for low and intermediate energies in elastic scattering of electrons from krypton atom.

Roothaan- Hartree-Fock atomic wave functions are used to performing these calculations.

In this paper a model for correlation potential we derive from Armiento-Mattsson (2003) correlation energy function , this model used to constructing the optical (full) scattering potential that used to performing our calculations and this can serve as new addition in this field.

This optical scattering potential model consists of the sum of the energy dependent electron gas exchange potential (Hara version) plus the energy independent electron gas correlation potential (derived in this work ) plus the long range polarization potential (Miller-Bederson version) plus the well known static potential .

We present a modify results for differential cross sections and critical positions for electrons scattering from krypton atom in the energy range (2-110eV).Our model and the corresponding results can serve as a new addition in this field .

The results obtained in this paper are in good agreement with the available theoretical results of other investigators .