Nuclear induces effects and mass correlations in low and multiply charged helium-like ions

21st International School on Nuclear Physics and Applications & International Symposium on Exotic Nuclei

Stoyanov, Zh K.^1 ; Pavlov, R.L.^1 ; Mihailov, L.M.^2 ; Velchev, Ch J^1 ; Mutafchieva, Y.D.^1 ; Tonev, D.^1 ; Chamel, N.^3

Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria^1

Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia, Bulgaria^2

Institut d'Astronomie et d'Astrophysique, Universitè Libre de Bruxelles, CP-226, Brussels, Belgium^3

关键词: Electron energies;    Explicitly correlated wave functions;    Ground-state electrons;    Mass polarization;    Minimization procedures;    Multiply charged;    Relativistic effects;    Variational perturbation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/724/1/012048/pdf
DOI  :  10.1088/1742-6596/724/1/012048

来源: IOP

【 摘 要 】

The ground-state electron energies, the mass correction and mass polarization of low and multiply charged helium-like ions are analytically and numerically calculated. Approximately 3500 different kinds of ions with charge Z = 2 118 are considered. The two-electron Schrodinger equation was solved using a discrete variational-perturbation approach developed by the authors and based on explicitly correlated wave functions. This approach takes into account the motion of the nucleus and yields accurate values for the electron characteristics. The results are presented with and without the inclusion of the mass polarization in the minimization procedure. The relative importance of mass correlations and relativistic effects in the formation of the electron energy characteristics of the helium-like ions are studied for different values of Z. The role of the inclusion of the mass polarization in the minimization procedure as an instrument to present and take into account the effects induced by the nuclear properties, structure and characteristics has been shown.