Charge transfer reactions of ground O⁺(⁴S) and metastable O⁺(²D,²P) ions with H₂molecules

Cross sections for charge transfer reactions of ground O+(4S) and metastable O+(2D, 2P) state ions with H2 have been measured for reactant ions with 10 to 500 eV kinetic energies. Ground-state ion cross sections range from 0.5 to 0.9*10-16 cm2 and metastable-state ion cross sections are approximately constant at 10*10-16 cm2.