๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Theory of absorption and emission of radiation in molecular collisions: Semiclassical model

โœ Scribed by Jian-Min Yuan; Thomas F. George; Francis J. McLafferty

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
636 KB
Volume
40
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

A semiclassical transition amplitude is derived for electronically inelastic molecular collisions in the presence of an intense electromagnetic field. The calcuiation of this amplitude involves the integration of classical trajectories for nuclei moving on effective potential energy surfaces. These surfaces, which exhibit an avoided crossing due to the coupling through the dipole interaction around the resonance nucicar configuration, are analytically continued to their complex intersection points, where trajectories switch surfaces. 0 thcr parts of these surfaces are similar to the field-free adiabatic surfaces, where one is shifted by h'w. Me&stable states, formed at some collision energies, are suggested in the field which are absent in the field-free system.

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