Theory of dissociative recombination of a linear triatomic ion with permanent electric dipole moment: Study of HCO{sup +}

Journal Article · Tue Dec 15 04:00:00 EST 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.062712· OSTI ID:21352356

Douguet, Nicolas; Kokoouline, Viatcheslav; Greene, Chris H ^[1]

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1. Department of Physics, University of Central Florida, Orlando, Florida 32816 (United States) and Laboratoire Aime Cotton, CNRS, Universite Paris-Sud XI, Orsay (France)

We present a theoretical description of dissociative recombination of triatomic molecular ions having large permanent dipole moments. The study has been partly motivated by a discrepancy between experimental and theoretical cross sections for dissociative recombination of the HCO{sup +} ion. The HCO{sup +} ion has a considerable permanent dipole moment (Dapprox =4 D), which has not been taken explicitly into account in previous theoretical studies. In the present study, we include explicitly the effect of the permanent electric dipole on the dynamics of the incident electron using the generalized quantum defect theory, and we present the resulting cross section obtained. This demonstrates the possibility of applying generalized quantum defect theory to the dissociative recombination of molecular ions.

• OSTI ID: 21352356
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CATIONS
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DIPOLE MOMENTS
DIPOLES
ELECTRIC DIPOLE MOMENTS
ELECTRIC DIPOLES
ELECTRIC MOMENTS
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
HYDROGEN COMPOUNDS
IONS
LEPTONS
MECHANICS
MOLECULAR IONS
MOLECULE COLLISIONS
MULTIPOLES
QUANTUM MECHANICS
RECOMBINATION