Construction of the energy matrix for complex atoms Part IV: Excitation of one electron from a closed shell into an open shell

Abstract

Abstract. This work is a continuation of the previous series related to the construction of the energy matrix for complex atoms. The effects of the second-order configuration interaction perturbations on the energylevel structure of nl N , nl N n1l1 n2l2 configurations were studied. In this paper we consider one-electron core excitations for and between the configurations under study. This work combined with Part II and III is a complete description of an electrostatic interaction. In Part I we presented a method which allows to analyse complex electronic systems. They constitute the basis for the design of an efficient computer program package allowing large scale calculations which provide accurate wave functions.

Semi-empirical determination of the nuclear quadrupole moment of $$^{109}$$Sn

“…The original method of the fine structure parametrization, presented by us in detail in papers [22][23][24][25][26][27][28], allows one obtaining the wave functions describing the electron states. Verification of the correctness of these wave functions can be carried out by means of the parametrization of the hyperfine structure or radiative properties.…”