RELATIVISTIC THEORY OF CALCULATION OF E1 TRANSITION AMPLITUDES, AND GAUGE INVARIANCE PRINCIPLE

Автор(и)

  • A. S. Chernyshev Одеський національний університет імені І. І. Мечникова, Ukraine
  • O. L. Mykhailov Odessa State Environmental University, Ukraine
  • A. V. Tsudik Odessa State Environmental University, Ukraine
  • I. S. Cherkasova Odessa State Environmental University, Ukraine

DOI:

https://doi.org/10.18524/0235-2435.2019.28.195375

Ключові слова:

relativistic theory, radiative transitions, francium

Анотація

The combined relativistic energy approach and relativistic many-body perturbation theory with the zeroth order Dirac-Kohn-Sham one-particle approximation are used for estimating the energies and the E1 radiative transitions amplitudes (oscillator strengths) for the low-excited states of the francium. The comparison with available theoretical and experimental (compilated) data is performed. The important point is linked with an accurate accounting for the complex exchange-correlation (polarization) effect contributions and using the optimized one-quasiparticle representation in the relativistic many-body perturbation theory zeroth order that significantly provides a physically reasonable agreement between theory and precise experiment.

Посилання

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2020-02-13

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