Population Distributions. II. Charge-Exchange Capture by Protons Incident Upon Ground-State Atoms

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Abstract
The ratios of the excited captures to the total captures have been computed for charge-exchange collision of protons incident upon each of the elements in their ground state. The calculations have been performed for incident proton energies of 5 to 140 keV and employing a simplified form of the Brinkman-Kramers matrix element. Generally speaking the extremes of behavior of the population distributions occur for charge-exchange collisions with the alkalis and with the inert gases; the population distributions for the other target elements fall smoothly within these extremes. The main variations of the population ratios and the primary trends for different target elements agree reasonably well with available experimental data.