Eur. Phys. J. D 55, 581-589 (2009)
https://doi.org/10.1140/epjd/e2009-00238-x

Positron scattering from hydrogen atom embedded in weakly-coupled plasmas

Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23, Taiwan, 106, P.R. China

Corresponding author: ^a arijit98@yahoo.com

Received: 7 June 2009
Revised: 14 July 2009
Published online: 4 September 2009

Abstract

Elastic scattering of positrons from the hydrogen atoms in weakly-coupled plasmas has been studied using an expression for partial wave scattering amplitude that has been derived within the framework second order distorted wave Born approximation. The interactions among the charged particles in the plasma have been represented by Debye-Hückel potentials. A detailed study has been made on differential and total cross sections in the energy range 20–300 eV. To the best of our knowledge such a study on the differential and total cross sections for elastic positron-hydrogen collisions in a weakly-coupled plasma environment is reported for the first time in the literature.