Atoms (Mar 2022)

A Theoretical Study of Scattering of Electrons and Positrons by CO<sub>2</sub> Molecule

  • M. Masum Billah,
  • M. Mousumi Khatun,
  • M. M. Haque,
  • M. Yousuf Ali,
  • Mahmudul H. Khandker,
  • A. K. F. Haque,
  • Hiroshi Watabe,
  • M. Alfaz Uddin

DOI
https://doi.org/10.3390/atoms10010031
Journal volume & issue
Vol. 10, no. 1
p. 31

Abstract

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This article presents a theoretical investigation of the differential, integrated, elastic, inelastic, total, momentum-transfer, and viscosity cross-sections, along with the total ionization cross-section, for elastically scattered electrons and positrons from a carbon dioxide (CO2) molecule in the incident energy range of 1 eV ≤Ei≤ 1 MeV. In addition, for the first time, we report the spin polarization of e±−CO2 scattering systems. The independent atom model (IAM) with screening correction (IAMS) using a complex optical potential was employed to solve the Dirac relativistic equation in partial-wave analysis. The comparison of our results with the available experimental data and other theoretical predictions shows a reasonable agreement in the intermediate- and high-energy regions.

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