The excitation energies,ionization potentials and oscillator strengths
of neutral and ionized species of Uub (Z = 112) and the homologue elements Zn,Cd and Hg |
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Authors: | Y J Yu J G Li C Z Dong X B Ding S Fritzsche B Fricke |
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Institution: | 1.College of Physics and Electronic Engineering, Northwest Normal University,Lanzhou,P.R. China;2.National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou,P.R. China;3.Institut für Physik, Universit?t Kassel,Kassel,Germany |
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Abstract: | Multi-configuration Dirac-Fock method (MCDF) is employed to
calculate excitation energies, ionization potentials and oscillator
strengths for all neutral and up to 5 times ionized species of
element Uub, as well as the homologue elements Zn, Cd and Hg. On
the basis of not too extended MCDF calculations, we studied some peculiar
properties of element Uub resulting from its stronger relativistic
and electron correlation effects. Using an extrapolative scheme,
improved ionization potentials of Uub were obtained with
an uncertainty of less than 0.5 eV. Furthermore, we calculated the
low-lying resonance excitation energies, absorption oscillator
strengths and the first ionization potential for Hg and Uub using
large scale MCDF calculations, which improved the uncertainty of
the excitation energies to less than 0.25 eV for element Hg. We hope
that such calculations yield good results for element Uub. |
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Keywords: | 31 25 Jf Electron correlation calculations for atoms and ions: excited states 32 70 Cs Oscillator strengths lifetimes transition moments |
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