Dissociative attachment of electrons to vibrationally excited H sub 2

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.43.3495· OSTI ID:5715828

Hickman, A P ^[1]

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1. Molecular Physics Laboratory, SRI International, Menlo Park, California 94025 (US)

Calculations are reported of the dissociative attachment of low-energy (less than 5 eV) electrons to molecular hydrogen in the states {ital v}=0--9 and {ital J}=0. The dynamics are treated using resonant scattering theory, fully including the nonlocal and energy-dependent shift and width operators. The necessary coupling terms are taken from the {ital ab} {ital initio} calculations of fixed-{ital R} electron-H{sub 2} scattering performed by Muendel, Berman, and Domcke (Phys. Rev. A 32, 181 (1985)). Good agreement with the available experimental data of Schulz and Asundi (Phys. Rev. 158, 2 (1967)) and of Allan and Wong (Phys. Rev. Lett. 41, 1791 (1978)) is achieved. Exploratory calculations were performed to investigate various local approximations to the nonlocal shift operator. The results suggest that the optimum local approximation will, in general, differ from the curve obtained in a fixed-nuclei structure calculation.

• OSTI ID: 5715828
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 43:7; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
COLLISIONS
COMPARATIVE EVALUATIONS
DISSOCIATION
ELECTRON ATTACHMENT
ELECTRON COLLISIONS
ELECTRON-MOLECULE COLLISIONS
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EV RANGE
EV RANGE 01-10
EXCITED STATES
GROUND STATES
HYDROGEN
MOLECULE COLLISIONS
NONMETALS
RESONANCE
VIBRATIONAL STATES