Theoretical investigations of e ± –CO scattering

• Published in: Journal of physics. B, Atomic, molecular, and optical physics Vol. 54; no. 9; pp. 95203 - 95225
• Main Authors: Billah, M Masum, H Khandker, Mahmudul, Shorifuddoza, M, Sayed, M A, Watabe, Hiroshi, Haque, A K F, Uddin, M Alfaz
• Format: Journal Article
• Language: English
• Published: IOP Publishing 05.05.2021
• Subjects: carbon monoxide molecule; Dirac partial wave analysis; electron and positron-molecule scattering; independent atom model; optical model; screening correction
• ISSN: 0953-4075; 1361-6455
• DOI: 10.1088/1361-6455/abf6b4

Abstract The differential, integrated elastic, total, momentum transfer, viscosity cross sections and spin-polarization for electron and positron elastic scattering from carbon monoxide (CO) molecule are calculated for the energy range of 1 eV–10 keV. The work also includes the calculations of inelastic and total ionization cross sections for the same scattering system. Calculations of the above scattering observables for CO over such a wide range of energy are reported for the first time. Single scattering independent atom model (IAM) and the screening correction within the same framework, are used for the present analysis. Dirac partial wave analysis is used to calculate the phase-shifts required for the generation of the scattering observables, using a complex optical model potential. Comparison of our calculated results with the available experimental observations and other theoretical calculations is presented. The screening corrected independent atom model is found to provide better description of the results than the IAM.