Abstract

A new theoretical result of the total charge transfer cross section in collisions of O+ ion in the ground state with H2 molecule is reported. The collision energy of the incident O+(4S) ion ranges from 1 eV/u to 10 keV/u, covering the available experimental data. States of A24 and B14 symmetry are included in the calculation. The state-resolved cross sections are obtained by using both the semiclassical and full quantum molecular orbital close coupling method. Based on our results, we propose a possible explanation for the large discrepancies in recent measurements among various experimental groups.

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