Abstract
Differential in angle and absolute cross sections in energy of the scattered particles are obtained for single charge exchange in \(^3He^+\)–\(^4He\) collisions by means of the four body boundary-corrected first Born approximation (CB1-4B). The quantum-mechanical post and prior transition amplitudes are derived in terms of two-dimensional real integrals in the case of the prior form and five-dimensional quadratures for the post form. The effect of the dynamic electron correlation through the complete perturbation potential and the nuclear-screening influence of the passive electrons on the electron capture process is investigated. The results obtained in the CB1-4B method are compared with the available experimental data. For differential cross sections, the present results are in better agreement with experimental data than other theoretical data at extreme forward scattering angles. The integral cross sections are in excellent agreement with the experiment. Also, total cross sections for single electron capture, has been investigated using the classical trajectory Monte Carlo method. The present calculated results are found to be in an excellent agreement with the experimental data.
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Acknowledgements
This work was supported by research fund of Islamic Azad University, Dezful Branch, under research project: ‘Single and double electron capture in collision of energetic ion-atom’.
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Ghavaminia, H., Ghavaminia, S. Effect of nuclear shielding in collision of positive charged helium ions with helium atoms. Indian J Phys 92, 271–278 (2018). https://doi.org/10.1007/s12648-017-1104-1
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DOI: https://doi.org/10.1007/s12648-017-1104-1