Positronium atomic formation in the Eikonal direct approximation

Abstract

Positronium (Ps) formation in a ground state and 2s state of the hydrogen atom by positron impact has been studied within the framework of Eikonal direct approximation in the intermediate and high energy range. For this process, we compute Eikonal charge- exchange scattering amplitude, the differential and total cross sections by reducing the six-dimensional integrals to one-dimensional integrals. Numerical results have been compared with some existing theoretical results and experimental findings.

Keywords

• Eikonal Direct Approximation
• Positronium
• Rearrangement
• Differential Cross Section
• Total Cross Section