Translational energy spectrometry of quantum-state-selected electron capture by metastable CO sup 2+ ions

Journal Article · Tue May 01 04:00:00 EDT 1990 · Physical Review, A (General Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevA.41.4824· OSTI ID:6807298

Mathur, D; Rajgara, F A ^[1]

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1. Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400005, India (IN)

Results are reported of a translational energy spectrometric study of state-selected electron-capture reactions between metastable CO{sup 2+} ions and H{sub 2}, He, O{sub 2}, and Kr. The experimental data are interpreted within the framework of recent {ital ab} {ital initio} calculations of the potential-energy curves of low-lying electronic states of CO{sup 2+}. Electron capture is found to occur predominantly into moderately exoergic channels corresponding to avoided crossings of seams of potential-energy surfaces in the range of internuclear separations between 3 and 5 a.u. Some evidence is found that the CO{sup 2+} projectile beam may comprise not only the {sup 1}{Sigma}{sup +} ground electronic state but may also possess a not-insignificant long-lived excited-state ({sup 3}{Pi}) component.

• OSTI ID: 6807298
• Journal Information: Physical Review, A (General Physics); (USA), Journal Name: Physical Review, A (General Physics); (USA) Vol. 41:9; ISSN PLRAA; ISSN 0556-2791
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CAPTURE
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARGED PARTICLES
COLLISIONS
ELECTRON CAPTURE
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
FLUIDS
GASES
HELIUM
HYDROGEN
ION COLLISIONS
ION-ATOM COLLISIONS
ION-MOLECULE COLLISIONS
IONS
KEV RANGE
KRYPTON
METASTABLE STATES
MOLECULE COLLISIONS
MULTICHARGED IONS
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
RARE GASES