Energy calculation of 2s2 1S, 2p2 1D, 3s2 1S, 3p2 1D, 3d2 1G, 4p2 1D, 4d2 1D, 4f2 1I doubly excited states using a new wave function to four terms for 2≤Z≤15. (June 2016)

• Record Type: Journal Article
• Authors: Sow, B.; Sow, M.; Gning, Y.; Traore, A.; Ndao, A.S.; Wague, A.
• Is Part Of: Radiation physics and chemistry. Volume 123(2016:Jun.)
• Page Start: 25
• Page End: 30
• Publication Date: 2016-06
• Subjects: Energy -- Screen Constant by Unit Nuclear Charge -- wave function correlated -- atoms and ions; Radiation chemistry -- Periodicals; Radiometry -- Periodicals; Radiation -- Periodicals; Chimie sous rayonnement -- Périodiques; 539.2
• DOI: 10.1016/j.radphyschem.2016.01.037
• Languages: English
• ISSNs: 0969-806X

Abstract

Abstract: Calculation of the energy levels of atoms and ions with 2 ≤ Z ≤ 15 are carried out in this paper using a Hyllerass approximation. The method used is one of Screen Constant by Nuclear Charge Unit to calculate the total energy of two-electron atomic systems in ground and different doubly excited states. Employing a new wave function including correlation, we were able to calculate excited states (nl) 2 ( n ≤ 4 ). The Comparison of these results with the ones of other methods shows a good agreement. Highlights: Accurate energy for doubly excited states of He-like systems 2 ≤ Z ≤ 15 . Well-comparable results to theoretical literature values. Satisfactory agreements with theoretical calculations.