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Relativistic configuration interaction calculations of transitions for low-lying states in the helium isoelectronic sequence

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Abstract The excitation energy and the oscillator strength values have been computed for the 1 s 2 – 1 s 2 p , 1 s 2 s – 1 s… Click to show full abstract

Abstract The excitation energy and the oscillator strength values have been computed for the 1 s 2 – 1 s 2 p , 1 s 2 s – 1 s 2 p , 1 s 2 s – 1 s 3 p transitions in the helium isoelectronic sequence ( Z = 2 through Z = 116 ). The importance of the Breit interaction and radiative corrections to the oscillator strength as well as transition energies have been studied. The method of calculations was based on the relativistic hydrogen-like (with non-integer nuclear number) wavefunctions.

Keywords: configuration interaction; relativistic configuration; isoelectronic sequence; helium isoelectronic

Journal Title: Atomic Data and Nuclear Data Tables
Year Published: 2020

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