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The Hyperfine Structure Calculations οf Some Excited Levels for ^{139}La I

100%
Karaçoban B., Özdemır L.
Acta Physica Polonica A
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2009
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vol. 115
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issue 5
864-872
EN
We calculated hyperfine structure constants of the 5d6s^{2}, 5d^{2}6s, 5d^{3}, 5d^{2}7s, 5d6s7s, 5d6p^{2}, 4f^{2}5d, 4f6s6p, 5d6s6p, 5d^{2}6p, 4f5d6s and 4f5d^{2} levels for ^{139}La I (Z=57). The calculations are based upon the multiconfiguration Hartree-Fock method within the framework of the Breit-Pauli relativistic corrections. Moreover, the results obtained were compared with other available calculations and experiments.
2
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Electric Dipole Transition Parameters for Low-Lying Levels for Neutral Actinium

100%
Özdemır L., Ürer G.
Acta Physica Polonica A
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2010
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vol. 118
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issue 4
563-569
EN
We have calculated the energies of some low-lying levels (6d7s^2, 6d^2 7s, 6d7s7p and 6d^27p) and electric dipole transition parameters (wavelengths, oscillator strengths and transition probabilities) between them for neutral actinium (Z=89). In the calculations, the correlation and relativistic effects are considered by multiconfiguration Hartree-Fock method within the framework Breit-Pauli Hamiltonian. The results obtained are compared with the available experimental and theoretical works in the literature.
3
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Energies and Lifetimes of Levels for Doubly Ionized Xenon and Radon

100%
Eser S., Özdemır L.
Acta Physica Polonica A
|
2018
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vol. 133
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issue 5
1324-1333
EN
We have reported the energies and radiative lifetimes of levels for doubly ionized xenon (Xe III) and radon (Rn III). The calculations have been performed using the general-purpose relativistic atomic structure package based on fully relativistic multiconfiguration Dirac-Fock method. We have compared the results obtained from this work for (Xe III) with previous works in available literature. For (Rn III), there is no data except a few energy levels. Hence, we have presented new values on the energy levels of (Rn III).
4
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Energies, Landé Factors, and Lifetimes for Some Excited Levels of Neutral Ytterbium (Z = 70)

100%
Karaçoban B., Özdemır L.
Acta Physica Polonica A
|
2011
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vol. 119
|
issue 3
342-353
EN
We have calculated relativistic energies, Landé factors, and lifetimes for some excited levels outside the core [Xe] in neutral ytterbium (Yb I, Z=70) using two configuration interaction methods (multiconfiguration Hartree-Fock method within the framework of Breit-Pauli relativistic corrections developed by Fischer, and Cowan's relativistic Hartree-Fock method). Results obtained have been compared with other calculations and experiments.
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