Volume 71, Number 1, July 2005
|Page(s)||42 - 48|
|Section||Atomic and molecular physics|
|Published online||01 June 2005|
Effect of the spin-orbit coupling in the dissociation dynamics of rare-gas ionic trimers
Department of Physics, University of Ostrava 30. dubna 22, Ostrava, Czech Republic
2 Groupe NanoScience, CEMES, UPR 8011 29 rue J. Marvig, BP 94347, 31055 Toulouse Cedex 4, France
Accepted: 4 May 2005
A dynamical model combining an extended diatomics-in-molecules approach with the inclusion of the spin-orbit coupling and the mean-field dynamics method has been developed for rare-gas cluster cations, , and employed in simulations of the photodissociation dynamics of argon, krypton, and xenon singly charged trimers. As the first step, total kinetic energies deposited in the photofragments are calculated for all the three rare gases and for a wide range of photon energies, and compared with available experimental data. A very good agreement between experiment and theory is reached, including a plausible theoretical explanation for an abrupt change in the total kinetic energy of photofragments at about 2.5 of photon energy, which was recently observed experimentally for (and also, but less clearly for ).
PACS: 33.80.-b – Photon interactions with molecules / 33.80.Gj – Diffuse spectra; predissociation, photodissociation / 33.50.Hv – Radiationless transitions, quenching
© EDP Sciences, 2005
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