On the key factors of angular correlations in complex-forming elementary reactions View Full Text


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Article Info

DATE

2006-04

AUTHORS

L. Bonnet, J. C. Rayez

ABSTRACT

In the mid-seventies, Case and Herschbach argued that for complex-forming three-atom reactions governed by long-range forces and performed in supersonic molecular beam experiments, vectorial properties are determined by a single parameter Λ' = 〈L'/(L' + j')〉, L' and j' being respectively the moduli of the orbital and rotational angular momenta of the products. A simple mathematical relation between vectorial properties and Λ' was then proposed. However, Λ' must be determined beforehand by phase space theory calculations. Besides, we have recently shown that scalar properties are mainly controled by two factors ρ'1 and ρ'2 respectively called angular excitation and diatomic inertial contribution. We show here that these factors control also vectorial properties. Moreover, the way they control them is summarized in a set of four figures. The advantage of our method is that ρ'1 and ρ'2 are related to the mechanical parameters of the reaction by very simple formulas, contrary to Λ'. Last by not least, our parameters appear to be mostly independent, so that vectorial properties cannot be said to strictly depend on Λ'. Nevertheless, it turns out that the rule proposed by Case and Herschbach is reasonable in many realistic situations. More... »

PAGES

65-73

Identifiers

URI

http://scigraph.springernature.com/pub.10.1140/epjd/e2006-00047-9

DOI

http://dx.doi.org/10.1140/epjd/e2006-00047-9

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1009499449


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