Electron capture from H2 molecule by He+ ions

The dynamics of the electron capture by He + ions from H 2 molecule has been investigated in the four-body first Born approximation. Cross sections differential in the scattering angle of the projectile ion have been calculated for various molecular orientations. The calculations account for the int...

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Bibliographic Details
Published in:The European physical journal. D, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2017-08, Vol.71 (8), p.1-10, Article 217
Main Authors: Ghavaminia, Hoda, Gulyas, Laszlo, Sarkadi, Laszlo, Bene, Erika, Demes, Sandor, Juhasz, Zoltan
Format: Article
Language:English
Subjects:
Applications of Nonlinear Dynamics and Chaos Theory
Atomic
Beta decay
Born approximation
Chemical Sciences
Coherent scattering
Computer simulation
Electron capture
Molecular
Monte Carlo simulation
Optical and Plasma Physics
Particle physics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Information Technology
Quantum Physics
Regular Article
Scattering angle
Scattering cross sections
Spectroscopy/Spectrometry
Spintronics
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Summary:The dynamics of the electron capture by He + ions from H 2 molecule has been investigated in the four-body first Born approximation. Cross sections differential in the scattering angle of the projectile ion have been calculated for various molecular orientations. The calculations account for the interference effects due to the coherent scattering of the particles from the two atomic centers. Total cross sections (integrated over the projectile’s scattering angle and averaged over all the molecular orientations) have also been calculated by a three-body version of the classical trajectory Monte Carlo (CTMC) method based on use of a two-center molecular potential, as well as in a semi-classical quasi-molecular model. The obtained total cross sections are compared with the available experimental data and other theoretical calculations. For impact energies above 40 keV a reasonable agreement has been found between the present theoretical results and the experiment. Graphical abstract
ISSN:1434-6060
1434-6079
DOI:10.1140/epjd/e2017-80238-y