Volume 116, Number 6, December 2016
|Number of page(s)||7|
|Section||Atomic, Molecular and Optical Physics|
|Published online||16 February 2017|
Molecular three-body Brauner-Briggs-Klar theory for ion-impact ionization of molecules
Department of Physics, Faculty of Sciences, University of Isfahan - Isfahan 81746-73441, Iran
Received: 23 November 2016
Accepted: 25 January 2017
Molecular three-body Brauner-Briggs-Klar (M3BBK) theory is developed to study the single ionization of diatomic molecules by ion impact. The orientation-averaged molecular orbital (OAMO) approximation is used to reduce the required computer time without sacrificing the performance of the method. The post-collision interaction (PCI) between the scattered projectile and the ejected electron is included. The theory is applied to collision of protons with hydrogen molecules. Results are obtained for two different kinematical regimes: i) fast collisions and low emission energies, and ii) not so fast collisions and higher emission energies. For both considered regimes, experimental fully differential cross-sections as well as different theoretical calculations are available for comparison. These comparisons are carried out and discussed.
PACS: 34.50.Gb – Electronic excitation and ionization of molecules
© EPLA, 2016
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