Born distorted-wave approximation applied to the H+ + He collisions at intermediate and high energies

• Published in: European physical journal plus Vol. 132; no. 11; p. 501
• Main Authors: Rahmanian, M., Fathi, R., Shojaei, F.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2017; Springer Nature B.V
• Subjects: Applied and Technical Physics; Approximation; Atomic; Boundary conditions; Charge transfer; Complex Systems; Condensed Matter Physics; Cross-sections; Electrons; Helium; Helium atoms; Mathematical analysis; Mathematical and Computational Physics; Molecular; Optical and Plasma Physics; Physics; Physics and Astronomy; Regular Article; Scattering angle; Theoretical
• ISSN: 2190-5444; 2190-5444
• DOI: 10.1140/epjp/i2017-11759-2

. The single-charge transfer process in collision of protons with helium atoms in their ground states is investigated. The model utilizes the second-order three-body Born distorted-wave approximation (BDW-3B) with correct Coulomb boundary conditions to calculate the differential and total cross sections at intermediate and high energies. The role of the passive electrons and electron-electron correlations are studied by comparing our results and the BDW-4B calculations with the complete perturbation potential. The present results are also compared with other theories, and the Thomas scattering mechanism is investigated. The obtained results are also compared with the recent experimental measurements. For the prior differential cross sections, the comparisons show better agreement with the experiments at smaller scattering angles. The agreement between the total cross sections and the BDW-4B results as well as the experimental data is good at higher impact energies.