Elastic Scattering of Electron and Positron by Radium and Radon Atoms
DOI:
https://doi.org/10.31257/2018/JKP/2021/130101Keywords:
Relativistic Dirac equati, Electron scattering , Positron scattering, Radium atoms (Ra) , Radon atoms (Rn).Abstract
The Differential Cross Sections (DCS's), Total Cross Sections (TCS's) and Momentum Transfer Cross Sections (MTCS's) of electron and positron scattering by radium and radon atoms were calculated in the range of energy (5–500) eV using a total potential consisting of combining the static, exchange and polarization potentials at long distances. In addition, the correlation potential of Perdew–Zunger at short distances for electrons was used, as well as the correlation potential of Jain for positrons. The exchange potential for positrons was neglected. In this study, a good agreement with other experimental values and theoretical values of many investigators was found.
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Copyright (c) 2023 A .K. Yassir, A. H. Hussain, F. A. Ali
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