Single Ionization and Electron Capture in He²⁺+Na Collisions
Single-electron capture and ionization in He2+ +Na collisions at energies around the matching velocity (2-13 keV amu−1) have been studied both experimentally and theoretically. State-selective cross section for capture into the n = 2, 3, 4 and n greater than or equal to 5, and the ionization cross section as well as differential cross sections for capture into n = 3 and 4 were obtained by the MOTRIMS method and compared with CTMC calculations. Good agreement was found between experiment and CTMC, especially concerning capture into high n-shells (n = 4, n greater than or equal to 5) and the ionization cross sections. For capture into the subdominant n = 2 shell close coupling calculations show better agreement. The differential cross sections for capture into n = 3 and 4 show a different energy dependency.
S. Knoop et al., "Single Ionization and Electron Capture in He²⁺+Na Collisions," Journal of Physics B: Atomic, Molecular and Optical Physics, Institute of Physics - IOP Publishing, Jun 2005.
The definitive version is available at http://dx.doi.org/10.1088/0953-4075/38/12/013
Keywords and Phrases
Atomic and Molecular Physics; Charge Transfer; Electronic Excitation and Ionization; Scattering
Article - Journal
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