Mean excitation energies of singly charged atomic anions with Z ≤ 18

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We present hitherto unknown mean excitation energies of singly charges atomic anions with Z≤ 18. Most of them are calculated using the Random-phase Approximation and large basis sets. We have shown that there is a nearly Z-independent, constant ratio between the mean excitation of anions and atoms. We have also shown that Bragg’s rule may be applied to determine the mean excitation energies of negative ions from mean excitation energies of atoms and cations with same nuclear charge but different number of electrons. These relationships were then used to estimate the mean excitation energies of the anions that we could not calculate directly.
Original languageEnglish
Article number095004
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Issue number9
Number of pages6
Publication statusPublished - 2019

    Research areas

  • Faculty of Science - Stopping Power, Mean excitation energy, Anions, Quantum Chemistry, random phase approximation

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