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has been cited by the following article:

• TITLE: A Search on Two-Electron Atoms

  AUTHORS: Mustafa Çapak, Bülent Gönül

  KEYWORDS: Hydrogen Like Atoms, Screening Parameter

  JOURNAL NAME: Journal of Modern Physics, Vol.2 No.9, September 19, 2011

  ABSTRACT: Using the basic ingredient of two-body problem, we propose accurate algebraic solutions in a closed form for the ground state of helium and helium-like atoms. These simple but explicit expressions involve exact screening parameters for each system considered and provide an insight into their physical structure. The energy eigenvalues have been exactly calculated for atoms with nuclear charge Z in the range 1 ≤ Z ≤ 12, clarifying the relation between the screening parameteter and Z.