Electron capture and excitation in collisions of O+ ( 4S , 2D , 2P ) with H2 molecules

Details Electron capture and excitation in collisions of O+ ( 4S , 2D , 2P ) with H2 molecules Electron capture and excitation in collisions of O+ ( 4S , 2D , 2P ) with H2 molecules

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrva..69f2715p&link_type=abstract

Physical Review A, vol. 69, Issue 6, id. 062715

Physics

1

Electronic Excitation And Ionization Of Molecules, Intermediate Molecular States, Charge Transfer, Basic Studies Of Specific Kinds Of Plasmas, Atomic, Molecular, And Chemical, And Grain Processes

Scientific paper

Using an electronic-state close-coupling method, we treated the electron capture and excitation processes of O+ ions both in ground state O+ ( 4S ) and metastable states O+* ( 2D ) and O+* ( 2P ) in collisions with the H2 molecule. In the ground-state projectile energy region considered (from 50 eV/amu to 10 keV/amu ), the experimental data vary by orders of magnitude: our results smoothly connect to the data by FleschNg, J. Chem. Phys.9419912372 and Xuet al., J. Phys. B2319901235 at low energy and agree with Phaneufet al., Phys. Rev. A171978534 in the high-energy region. The present values differ from Sieglaffet al., Phys. Rev. A5919993538 and Nuttet al., J. Phys. B121979L157, especially in the energy region below 1 keV/amu . We provide the first calculated state-resolved cross sections of electron capture and target-projectile electronic excitations for the O+ ( 4S , 2D , 2P )- H2 collision system.

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