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A: Fachverband Atomphysik

A 20: Poster Session I

A 20.43: Poster

Dienstag, 7. März 2017, 17:00–19:00, P OG1

Precision description of the atomic structure. Example of the odd configuration system of La I — •Jerzy Dembczyński¹, Magdalena Elantkowska², and Jarosław Ruczkowski¹ — ¹Institute of Control and Information Engineering, Poznan University of Technology, Piotrowo 3A, 60-965 Poznań, Poland — ²Institute of Materials Research and Quantum Engineering, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland

We developed the method, which allows to analyze a complex electronic system composed of the configuration of up to four open shells, taking into account all electromagnetic interactions expected in an atom, in accordance with the second-order perturbation theory [1,2].

In order to show the effectiveness of our method, we decided to choose the odd configuration system of lanthanum atom, with a large amount of new experimental data [3].

The hyperfine structure constants were calculated using the fine structure eigenvectors and adjusting radial integrals in a least-squares procedure which compare the calculated constants with the experimental values. Moreover, the values of energy for the levels up to now unidentified and their hyperfine structure constants were predicted.

This work was supported by the Research Projects of the Polish Ministry of Sciences and Higher Education: 04/45/DSPB/0148

[1] J. Dembczyński et al., J Phys B 43, 06500 (2010)

[2] M. Elantkowska, J. Ruczkowski, J. Dembczyński, Eur Phys J Plus 130, 14 (2015)

[3] Gü. Başar et al., J Quant Spectrosc Radiat Transf 187, 505 (2017)