Abstract
A first-order four-body perturbation theory is developed to calculate both the differential and integral cross-sections for [Formula: see text]-shell charge exchange from multi-electron atomic targets to the [Formula: see text] bound state of the fast proton projectiles. The correct boundary conditions are incorporated in the formalism. The model is applied to the single electron capture process from carbon, nitrogen, oxygen, neon and argon atoms for which the experimental data are available. The results are compared with their corresponding experimental values and also with those obtained from three-body version of the theory. A comparison is also made between the present predicted cross-sections and those obtained from other theories. Comparisons show that the suggested approximation is in reasonable agreement with the experimental data and is compatible with the other theories.
Published Version
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