Theoretical study of near-resonant charge-exchange collisions of H/sup +/ with alkali atoms

Journal Article · Thu Jan 01 04:00:00 EST 1981 · Phys. Rev., A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.23.110· OSTI ID:7093730

Kubach, C; Sidis, V

Our earlier study of the H/sup +/-Cs collision is extended to the lighter H/sup +/--alkali-atom systems. The previous one-electron projected-valence-bond approximation is further simplified and improved by the use of an effective screened Coulomb potential to represent the alkali/sup +/ core. This method is found to reproduce very accurately the results of a complete all-electron calculation performed on the (Li-H)/sup +/ system. Total cross sections for charge exchange into H(n=2)+alkali/sup +/ are obtained from diabatic 7-state close-coupling calculations. The theoretical results nicely agree with the available experimental data for the H/sup +/-K and -Rb systems. On the other hand, the calculated cross section for H/sup +/-Na is significantly smaller than the experimental results; possible sources of this discrepancy are discussed.

• Research Organization: Laboratoire des Collisions Atomiques et Moleculaires, Batiment 351, Universite Paris-Sud, 91405 Orsay Cedex, France
• OSTI ID: 7093730
• Journal Information: Phys. Rev., A; (United States), Journal Name: Phys. Rev., A; (United States) Vol. 23:1; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METALS
ATOM COLLISIONS
CATIONS
CESIUM
CHARGE EXCHANGE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELEMENTS
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
LITHIUM
METALS
RUBIDIUM
SODIUM