Single Electron-Capture Cross Sections in C^<5+,6+>+C^<3+>, N^<6+,7+>+N^<4+>, and O^<7+,8+>+O^<5+> Collisions(Atomic and molecular physics)

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Single electron-capture cross sections in collisions of bare and hydrogen-like ions with lithium-like ions of C, N, and O are calculated in the collision energy range between 0.05 and 16 keV/amu using a molecular-state close-coupling method. For the lithium-like ions, both the ground and first excited states are considered. The cross sections are calculated for capture into n=2 and 3 states of the bare and hydrogen-like ions and for excitation and de-excitation of the lithium-like ions. None of the electroncapture cross sections are larger than 10^<15> cm^2 in the collision energy range considered in the present study. At lower collision energies, the cross sections decrease due to Coulomb repulsion between the ions. Partial cross sections for capture into 1s3s, 1s3p, and 1s3d levels for the hydrogen-like ion collisions are on the same order of magnitude because the final states are mixed with each other by the electric field induced by the helium-like ions.
社団法人日本物理学会の論文
2006-07-15