Title

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

Authors

Authors

N. Douguet; V. Kokoouline;C. H. Greene

Comments

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Abbreviated Journal Title

Phys. Rev. A

Keywords

QUANTUM-DEFECT THEORY; POLAR-MOLECULES; GENERAL-FORM; AB-INITIO; SCATTERING; ENERGY; Optics; Physics, Atomic, Molecular & Chemical

Abstract

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+ ion. The HCO+ ion has a considerable permanent dipole moment (D approximate to 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.

Journal Title

Physical Review A

Volume

80

Issue/Number

6

Publication Date

1-1-2009

Document Type

Article

Language

English

First Page

6

WOS Identifier

WOS:000273233800088

ISSN

1050-2947

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