Helium-like ions in d-dimensions: analyticity and generalized ground state Majorana solutions

Fine structure of helium and light helium-like ions

Calculational results are presented for the fine-structure splitting of the 2P state of helium and helium-like ions with the nuclear charge Z up to 10. Theoretical predictions are in agreement with the latest experimental results for the helium fine-structure intervals as well as with the most of the experimental data available for light helium-like ions. Comparing the theoretical value of the ...

S-states of helium-like ions

Two-electron atoms or ions present an excellent testing ground for checking new calculational methods and for studying photoelectron and other atomic processes. A large variety of techniques have been developed to obtain the non-relativistic bound energies and wave functions for the mentioned systems. An excellent review on this topic can be found in [1, 2]. The double basis set method in Hylle...

Removal of Ni (II) ions from Aqueous Solutions Using Origanum majorana-Capped Silver NanoParticles Synthesis Eequilibrium

The applicability of Origanum majorana-Capped Silver nanoparticles synthesis for removing Ni (II) ions from aqueous solutions has been reported. This novel material was characterized by different techniques such as FT-IR, XRD and SEM. The influence of nanoparticle dosage, pH of the sample solution, individual ions concentration, temperature, contact time between the sample and the adsorbent wer...

Variational calculation for the ground state of lithium and the QED corrections for Li-like ions.

Two-loop self-energy correction to the ground-state Lamb shift in H-like ions

The two-loop self-energy correction is evaluated to all orders in Zα for the groundstate Lamb shift of H-like ions with Z ≥ 20, where Z is the nuclear charge number and α is the fine structure constant. The results obtained are compared with analytical calculations performed within the Zα-expansion.