CROSS SECTIONS FOR CHARGE TRANSFER REACTIONS
IN H + O+ AND IN H+ + O COLLISIONS BELOW 10 eV

I. Krajcar Bronic1, M. Kimura2, P. C. Stancil3, J.-p. Gu4, G. Hirsch5 and
R. J. Buenker4,5=20

1R. Bo=9Akovic Institute, Zagreb, Croatia, 2Yamaguchi University, Japan, 3Oa=
k
Ridge National Laboratory, USA, 4ITAMP, Harvard-Smithsonian Center for
Astrophysics, 5University Wuppertal, Germany

Charge transfer in H+ + O and its reverse process, H + O+ collisions, is
investigated at low energies below 10 eV based on a fully quantum
mechanical molecular orbital expansion model. The two sets of cross
sections approach each other above 3 eV and become nearly identical above
this energy. A series of very strong oscillatory structures is seen in the
energy region between 1.5 eV and 7 eV.