Recommended Cross Sections for State-Selective Electron Capture in Collisions of C6+ and O8+ Ions with Atomic Hydrogen

The available theoretical cross-section data for electron capture into specific (n, l) states in collisions of C⁶⁺ and O⁸⁺ ions with ground-state hydrogen atoms have been critically assessed. By applying appropriate consistency checks, including comparison with the experimental emission and total cross sections, a set of recommended state-selective electron-capture cross sections σ_nl has been derived for 3 <= n <= 8 for C⁶⁺ + H and 4 <= n <= 9 for O⁸⁺ + H, with specified accuracy. The recommended cross sections σ_nl and their sum over l, σ_n, are presented in graphical form in the energy range from approximately 20 keV/amu (or lower for the dominant channels) to approximately 1 MeV/amu. Analytical fits to the recommended cross sections and fitting parameters are also presented.