dissociative recombination


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dissociative recombination

[də¦sō·shəd·iv ‚rē·käm·bə′nā·shən]
(atomic physics)
The combination of an electron with a positive molecular ion in a gas followed by dissociation of the molecule in which the resulting atoms carry off the excess energy.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
"This confirmation of the existence of HeH+ in nearby interstellar space constrains our understanding of the chemical networks that control the formation of this molecular ion, in particular the rates of radiative association and dissociative recombination," researchers stated.
The processes involved in the active media of lasers at the 3p-3s transitions of Nel are considered to be well studied [19, 24]: the population of the upper laser level occurs primarily because of the dissociative recombination of [Ne.sub.2.sup.+] and He[Ne.sup.+] molecular ions.
Apparently, the population of the 3p'[[1/2].sub.0] level of Nel under excitation by heavy particles does not occur through the dissociative recombination of molecular ions.
The main conclusion of [25, 28] is that for neon-containing gas mixtures under pumping by heavy particles, the predominant mechanism for the population of the 3p levels of neon is not associated with the dissociative recombination of [Ne.sub.2.sup.+].
Therefore, the dissociative recombination of argon and krypton molecular ions with electrons is not the basic mechanism of the population of the (n + 1)p levels of atoms nor, correspondingly, the nd levels.
It was shown that the population of the [7.sup.3][S.sub.1] level of the mercury atom occurs through the dissociative recombination of ions but not through stepwise excitation by electrons [40].
It was shown that the dissociative recombination of molecular ions with electrons is not the basic process underlying the population of the p levels of inert-gas atoms.
Peterson, "Observation of dissociative recombination of [Ne.sub.2.sup.+] and [Ar.sub.2.sup.+] directly to the ground state of the product atoms," Physical Review A, vol.
A major loss mechanism for nitrogen is called dissociative recombination. This process starts when a positively charged nitrogen molecule at the top of the atmosphere combines with an electron to produce a pair of free nitrogen atoms.