Relaxation effects in 2p photoionization of Ar isonuclear sequence

  • Xiaobin LiuEmail author
  • Xiaobin Ding
Regular Article


The 2p photoionization cross sections of Ar, Ar6+ and Ar8+ have been investigated by the multiconfiguration Dirac-Fock method. Our results show excellent agreement with the previous measurements and calculations, the relaxation is not so important for inner subshells of neutral Ar and all subshells of Ar6+ and Ar8+ as generally accepted. In unrelaxed calculation, it is known that the inner-shell cross sections are essentially unchanged upon the presence or absence of outer electrons except for a shift in the corresponding thresholds. Specifically, the present results show that this is not entirely true, i.e., non-neglectable influence of the removal of outer electrons on the 2p cross sections is observed even when the relaxation effects are not considered, especially in energy region near the thresholds.


Atomic Physics 


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© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.School of Physics and Information ScienceTianshui Normal UniversityTianshuiP.R. China
  2. 2.Key Laboratory of Atomic and Molecular Physics & Functional Materials of Gansu Province, College of Physics and Electronic EngineeringNorthwest Normal UniversityLanzhouP.R. China

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