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The Singlet Doubly Excited (nl)2 (n <= 7) States of He-Like Systems up to Z=10 and the Effect of Screen Constant (Z) on the Nuclear Charge (Z)

Calculations of the energy levels of atoms and ions with Z ? 10 are carried out in this paper using the variational method. New wave function with two terms including correlation was performed to calculate excited (ns2) 1Se, (np2) 1De, (nd2) 1Ge, (nf2) 1Ie, (nh2) 1Me and (ng2) 1Ke states with (n ? 7). The results obtained show quantitatively the great significance of electron correlation effects in the doubly excited states. These results are in compliance with some experimental and theoretical data.

Auteur(s) : A. DIOUF , B. SOW, Y. GNING, M. Sow, A. Traoré, A.Wagué
Pages : 78-85
Année de publication : 2017
Revue : International Journal of Applied Mathematics and Theoretical Physics
N° de volume : 3(4)
Type : Article
Mise en ligne par : SOW Malick