Relativistic study on the scattering of e± from atoms and ions of the Rn isonuclear series

Mahmudul H. Khandker, A. K. Fazlul Haque, M. M. Haque, M. Masum Billah, Hiroshi Watabe, M. Alfaz Uddin

Research output: Contribution to journalArticlepeer-review

Abstract

Calculations are presented for differential, integrated elastic, momentum transfer, viscosity, inelastic, total cross sections and spin polarization parameters S, T and U for electrons and positrons scattering from atoms and ions of radon isonuclear series in the energy range from 1 eV–1 MeV. In addition, we analyze systematically the details of the critical minima in the elastic differential cross sections along with the positions of the corresponding maximum polarization points in the Sherman function for the aforesaid scattering systems. Coulomb glory is investigated across the ionic series. A short range complex optical potential, comprising static, polarization and exchange (for electron projectile) potentials, is used to describe the scattering from neutral atom. This potential is supplemented by the Coulomb potential for the same purpose for a charged atom. The Dirac partial wave analysis, employing the aforesaid potential, is carried out to calculate the aforesaid scattering observables. A comparison of our results with other theoretical findings shows a reasonable agreement over the studied energy range.

Original languageEnglish
Article number59
JournalAtoms
Volume9
Issue number3
DOIs
Publication statusPublished - 2021 Sep

Keywords

  • Coulomb glory
  • Critical minima
  • Electron and positron scattering
  • Spin asymmetry
  • Total polarization

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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