Dissociative recombination in low-energy e-H/sub 2//sup +/ collisions

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.28.682· OSTI ID:5889540

Giusti-Suzor, A; Bardsley, J N; Derkits, C

The theory of configuration interaction in molecules is extended to permit the simultaneous treatment of doubly excited electronic states and vibrationally excited Rydberg states which can decay by autoionization and predissociation. The method is applied to dissociative recombination and compared with the corresponding multichannel quantum-defect theory. Calculations using both techniques are reported for collisions of electrons of energy below 0.5 eV with H/sub 2/ /sup +/ ions in the lowest three vibrational states. The Rydberg states lead to narrow structures in the cross sections, mostly in the form of dips. The cross section and recombination rate for ground-state ions are anomalously low, being smaller than those for v = 1 and 2 by a factor of approx.6.

• Research Organization: Laboratoire de Photophysique Moleculaire, Universite de Paris-Sud, F-91405 Orsay, France
• OSTI ID: 5889540
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 28:2; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
AUTOIONIZATION
CHARGED PARTICLES
COLLISIONS
CONFIGURATION INTERACTION
CROSS SECTIONS
DISSOCIATION
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
GROUND STATES
HYDROGEN
ION COLLISIONS
IONIZATION
IONS
MOLECULAR IONS
NONMETALS
PREDISSOCIATION
RECOMBINATION
RYDBERG STATES