Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 8, Issue 34, Pages 3951-3954Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b608811b
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For complex- forming chemical reactions, such as atom-diatom insertion reactions, quantum scattering and quantum statistical calculations usually predict sharp forward/ backward peaks in the Differential Cross Sections (DCS). Conversely, the corresponding classical calculations are unable to reproduce these peaks. We show here that the basic reason for such an intriguing failure is that parity conservation is ignored in classical mechanics. A by- product of the analysis is a simple parity-restoring approximation that might significantly increase the ability of classical mechanics to describe DCSs over the whole angular range for the title processes.
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