Collision models of intramultiplet transitions at thermal energies

Harel, C. and López, V. and McCarroll, R. and Riera, A. and Wahnón Benarroch, Perla (1978). Collision models of intramultiplet transitions at thermal energies. "Journal of Physics B: Atomic and Molecular Physics", v. 11 (n. 1); pp. 71-84. ISSN 0022-3700. https://doi.org/10.1088/0022-3700/11/1/013.

Description

Title: Collision models of intramultiplet transitions at thermal energies
Author/s:
  • Harel, C.
  • López, V.
  • McCarroll, R.
  • Riera, A.
  • Wahnón Benarroch, Perla
Item Type: Article
Título de Revista/Publicación: Journal of Physics B: Atomic and Molecular Physics
Date: 1978
ISSN: 0022-3700
Volume: 11
Subjects:
Freetext Keywords: Thermal energies; transitions;
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica y Bioingeniería
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

An analysis is presented of the range of validity of the approximations currently used to calculate cross sections for fine-structure transitions at thermal energies. The particular example considered is the 2P1/2-2P3/2 transition in C+-H collisions. For a given set of interaction potentials of CH+, the full quantum-mechanical close-coupling method is used to provide a reference for comparison with a number of approximate dynamical models-semiclassical sudden approximation, quantal elastic and Omega -conserving methods. All of the dynamical models examined proved to be very satisfactory. On the other hand, the calculated cross sections are sensitive to the interaction potentials, especially for intermediate and long internuclear distances where the presently available data are not sufficiently reliable; errors in the calculated cross sections may attain 40%.

More information

Item ID: 60936
DC Identifier: http://oa.upm.es/60936/
OAI Identifier: oai:oa.upm.es:60936
DOI: 10.1088/0022-3700/11/1/013
Deposited by: Biblioteca ETSI Telecomunicación
Deposited on: 16 Mar 2020 13:21
Last Modified: 17 Mar 2020 12:14
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