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Journal of Atomic, Molecular, and Optical Physics
Volume 2012 (2012), Article ID 246105, 15 pages
http://dx.doi.org/10.1155/2012/246105
Research Article

Transition Parameters for Doubly Ionized Lanthanum

Department of Physics, Sakarya University, 54187 Sakarya, Turkey

Received 6 July 2012; Accepted 8 August 2012

Academic Editor: Alan Migdall

Copyright © 2012 Betül Karaçoban and Leyla Özdemir. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The transition parameters such as the wavelengths, weighted oscillator strengths, and transition probabilities (or rates) for the nd , nd , np , and ng electric dipole (E1) transitions of doubly ionized lanthanum (La III, ) have been calculated using the relativistic Hartree-Fock (HFR) method. In this method, configuration interaction and relativistic effects have been included in the computations combined with a least squares fitting of the Hamiltonian eigenvalues to the observed energy levels. We have compared the results obtained from this work with the previously available calculations and experiments in literature. We have also reported new transitions with the weighted transition probabilities greater than or equal to 105.