Multichannel-quantum-defect-theory treatment of preionized and predissociated triplet gerade levels of H2

A. Matzkin, Ch. Jungen, and S. C. Ross
Phys. Rev. A 62, 062511 – Published 15 November 2000
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Abstract

Multichannel quantum defect theory (MQDT) is used to calculate highly excited predissociated and preionized triplet gerade states of H2. The treatment is ab initio and is based on the clamped-nuclei quantum-defect matrices and dipole transition moments derived from quantum-chemical potential energy curves by Ross et al. [Can. J. Phys. (to be published)]. Level positions, predissociation or preionization widths and relative intensities are found to be in good agreement with those observed by Lembo et al. [Phys. Rev. A 38, 3447 (1988); J. Chem. Phys. 92, 2219 (1990)] by an optical-optical double resonance photoionization or depletion technique.

  • Received 7 April 2000

DOI:https://doi.org/10.1103/PhysRevA.62.062511

©2000 American Physical Society

Authors & Affiliations

A. Matzkin1,*, Ch. Jungen, and S. C. Ross1,2

  • 1Laboratoire Aimé Cotton, CNRS, Université de Paris–Sud, 91405 Orsay, France
  • 2Department of Physics, University of New Brunswick, P.O. Box 4400, Fredericton, New Brunswick, Canada E3B 5A3

  • *Present address: Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London, Great Britain.

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Vol. 62, Iss. 6 — December 2000

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