Charge transfer in slow collisions of O{sup 8+} and Ar{sup 8+} ions with H(1s) below 2 keV/amu
Journal Article
·
· Physical Review. A
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
- Department of Physics, Kansas State University, Manhattan, Kansas 66506 (United States)
We calculated the charge-transfer cross sections for O{sup 8+}+H collisions for energies from 1 eV/amu to 2 keV/amu, using the recently developed hyperspherical close-coupling method. In particular, the discrepancy for electron capture to the n=6 states of O{sup 7+} from the previous theoretical calculations is further analyzed. Our results indicate that at low energies (below 100 eV/amu) electron capture to the n=6 manifold of O{sup 7+} becomes dominant. The present results are used to resolve the long-standing discrepancies from the different elaborate semiclassical calculations near 100 eV/amu. We have also performed the semiclassical atomic orbital close-coupling calculations with straight-line trajectories. We found the semiclassical calculations agree with the quantal approach at energy above 100 eV/amu, where the collision occurs at large impact parameters. Calculations for Ar{sup 8+}+H collisions in the same energy range have also been carried out to analyze the effect of the ionic core on the subshell cross sections. By using diabatic molecular basis functions, we show that converged results can be obtained with small numbers of channels.
- OSTI ID:
- 20643902
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 70; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Charge transfer in slow collisions of C{sup 6+} with H below 1 keV/amu
Hyperspherical close-coupling calculations for electron-capture cross sections in low-energy Ne{sup 10+}+H(1s) collisions
Modified method of perturbed stationary states. V. Electron-capture cross sections for the reaction O/sup 8 +/+H(1s). -->. O/sup 7 +/(n,l)+H/sup +/
Journal Article
·
Fri Jul 15 00:00:00 EDT 2005
· Physical Review. A
·
OSTI ID:20718375
Hyperspherical close-coupling calculations for electron-capture cross sections in low-energy Ne{sup 10+}+H(1s) collisions
Journal Article
·
Sat Jul 15 00:00:00 EDT 2006
· Physical Review. A
·
OSTI ID:20852924
Modified method of perturbed stationary states. V. Electron-capture cross sections for the reaction O/sup 8 +/+H(1s). -->. O/sup 7 +/(n,l)+H/sup +/
Journal Article
·
Mon Jan 31 23:00:00 EST 1983
· Phys. Rev. A; (United States)
·
OSTI ID:6238525