Relativistic screened hydrogenic functions

Fig. 9.1 Momentum distribution for the K-shell electron in gold. Open circle nonrelativistic screened hydrogenic wave function solid circle relativistic screened hydrogenic wave function dotted curve HFR, full curve RHFR...

Fig. 9.4 L2-shell ionization cross section for protons on gold. Solid circle experimenttii data by Semaniak et al. [35] open circle experimental data by Cohen [34] dotted curve nonrelativistic screened hydrogenic wave function broken curve HFR chain curve relativistic screened hydrogenic wave function / // curve RHFR...

The similar trend are observed for Li- and L2-shell electrons in Au. The momentum distribution for the L3-shell electrons is shown in Fig. 9.2. There is small difference between the screened hydrogenic wave functions and the realistic wave functions. This is called the wave-function effect. The relativistic effect can be seen, but is smaller in comparison with the K-shell electrons. For the Ls-shell electrons, Talukdar et al. [29] reported that the relativistic effect depresses high-momentum component and the relativistic momentum distribution is smaller than... 

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