Title

Theoretical rate of dissociative recombination of HCO(+) and DCO(+) ions

Authors

Authors

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

Comments

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Abbreviated Journal Title

Phys. Rev. A

Keywords

TEMPERATURE-DEPENDENCE; H-3(+); STATES; H-3+; COEFFICIENTS; ELECTRONS; LINE; Optics; Physics, Atomic, Molecular & Chemical

Abstract

This Brief Report presents an improved theoretical description of dissociative recombination of HCO(+) and DCO(+) ions with a low-energy electron. In a previous theoretical study [Mikhailov et al., Phys. Rev. A 74, 032707 (2006)] on HCO(+), the vibrational motion along the CO coordinate was neglected. Here, all vibrational degrees of freedom, including the CO stretch coordinate, are taken into account. The theoretical dissociative recombination cross section obtained is similar to the previous theoretical result at low collision energies (<0.1 eV) but somewhat larger at higher (>0.1 eV) energies. Therefore, the present study suggests that motion along the CO coordinate does not play a significant role in the process at low collision energies. The theoretical cross section is still approximately 2-3 times lower than the data from a recent merged-beam experiment.

Journal Title

Physical Review A

Volume

77

Issue/Number

6

Publication Date

1-1-2008

Document Type

Article

Language

English

First Page

4

WOS Identifier

WOS:000257288800207

ISSN

1050-2947

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