Relativistic calculations of positron scattering from xenon (Xe) atom

We present relativistic calculations of the differential, integrated elastic, momentum transfer, total cross sections and spin polarization parameters for positrons scattered from xenon atom using a simple optical model potential to represent interaction between positron and target atoms. In the calculation, we employ a parameter-free model potential for the correlation polarization and absorption potential as devised for positron-atom scattering. Our calculated differential cross sections compare fairly well with the experimental results. (author)