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Chin. Phys. B, 2015, Vol. 24(3): 033401    DOI: 10.1088/1674-1056/24/3/033401
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Projectile angular-differential cross sections for single electron transfer in fast He+-He collisions

Ebrahim Ghanbari-Adivi, Hoda Ghavaminia
Department of Physics and Isfahan Quantum Optics Group (IQOG), Faculty of Science, University of Isfahan, Isfahan 81746-73441, Iran
Abstract  The four-body Coulomb-Born distorted wave approximation is applied to investigate the integral as well as projectile angular-differential cross sections for single-electron capture in the collision of energetic singly positive charged helium ions with helium atoms in their ground states. The formalism satisfies the correct boundary conditions. The influence of the dynamic electron correlations on the cross sections is studied by considering the inter electronic interactions in the complete perturbation potentials in post form. Also, the sensitivity of the cross sections to the static electronic correlations is studied by using the single-zeta and the highly correlated Byron-Joachain wave functions to describe the initial bound state of the active electrons. The obtained results for the energy range of 40-5000 keV/amu are reported and compared with other three- and four-body theoretical data and available experimental measurements. The comparison leads us to discuss the validity of the applied approach and survey the interaction effects on the cross sections by recognizing the electron- electron interaction. Particularly, for differential cross sections, the comparison of the present four-body method with the experiment shows that the agreement is not as good as that for its three-body version.
Keywords:  Coulomb-Born distorted-wave approximation      four-body approximation      Coulomb boundary conditions      differential and total cross sections  
Received:  10 September 2014      Revised:  19 January 2015      Published:  05 March 2015
PACS:  34.70.+e (Charge transfer)  
Corresponding Authors:  Ebrahim Ghanbari-Adivi     E-mail:  ghanbari@phys.ui.ac.ir

Cite this article: 

Ebrahim Ghanbari-Adivi, Hoda Ghavaminia Projectile angular-differential cross sections for single electron transfer in fast He+-He collisions 2015 Chin. Phys. B 24 033401

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