Abstract

The problem of electron transfer between neutral atoms and multiply charged ions is considered at low and medium energies. It is assumed that a large number of final states are available for the electron transition so that the electron-capture process is treated as a tunnel effect caused by the strong attractive Coulomb field of the multicharged ion. The electron transition probability is obtained in a closed form using the modified-comparison-equation method to solve the Schr\odinger equation. An approximately linear dependence of the one-electron transfer cross section on the charge of multicharged ions is found. Cross-section calculations of a number of charge-exchange reactions are performed.

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