Differential cross sections for vibrational excitation in H+2(X 2Σ+g, ν0′) –H2(X 1Σ+g, ν0″), N+2(X 1Σ+g, ν0′) –N2(X 1Σ+g, ν0″), O+2(X 2Πg, ν0′) –O2(X 3Σ−g, ν0″), CO+(X 2Σ+, ν′0) –CO(X 1Σ+, ν0″), and NO+(X 1Σ+, ν0′) –NO(X 2Πr, ν0″) charge transfer reactions have been determined for incident ions with 0.004 to 2.2 keV kinetic energies. Differential cross sections for excitation of individual charge transfer channels have been computed as a function of scattering angle using a multistate impact parameter treatment of the collision processes. At low kinetic energies, coverged cross sections are obtained with the inclusion of a relatively small number of product vibrational states in the wavefunction expansion of the system while a large number of product states must be included at higher energies. Small angle scattering within several degrees dominates the charge transfer, with the scattering becoming more concentrated in the forward direction at higher kinetic energies.
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