Three-body collision contributions to recombination and collision-induced dissociation. I. Cross sections

Journal Article · Thu Oct 01 04:00:00 EDT 1998 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.477348· OSTI ID:662181

T Pack, R; Walker, R B; Kendrick, B K ^[1]

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1. Theoretical Division (T-12, MS B268), Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Many of the current chemical kinetics textbooks and kinetics papers treat atomic and molecular recombination and collision-induced dissociation (CID) as occurring only via sequences of two-body collisions. Actually, there is considerable evidence from experiment and classical trajectory calculations for contributions by true three-body collisions to the recombination of atomic and diatomic radicals, and that evidence is reviewed. Then, an approximate quantum method treating both two-body and three-body collisions simultaneously and on equal footing is used to calculate cross sections for the reaction Ne{sub 2}+H{r_equilibrium}Ne+Ne+H. The results provide clear quantum evidence that direct three-body collisions do contribute significantly to recombination and CID. {copyright} {ital 1998 American Institute of Physics.}

• OSTI ID: 662181
• Journal Information: Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 16 Vol. 109; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
66 PHYSICS
CHEMICAL REACTION KINETICS
CROSS SECTIONS
DISSOCIATION
HYDROGEN
NEON
REACTION KINETICS
RECOMBINATION
THREE-BODY PROBLEM