Multiconfiguration Dirac-Hartree-Fock and configuration-interaction study of $4d-3p$ x-ray transitions in Cu- and Ni-like tungsten ions

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Détails bibliographiques
Auteurs principaux:	Kozioł, Karol, Rzadkiewicz, Jacek
Format:	Preprint
Publié:	2024
Sujets:	Atomic Physics
Accès en ligne:	Acceder al recurso
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_version_	1866913351378927616
author	Kozioł, Karol Rzadkiewicz, Jacek
author_facet	Kozioł, Karol Rzadkiewicz, Jacek
contents	The $4d \to 3p$ x-ray transitions in Cu- and Ni-like tungsten ions have been studied theoretically. The multiconfiguration Dirac-Hartree-Fock (MCDHF) method and the large-scale relativistic configuration-interaction (CI) method have been employed in order to take into account electron correlation effects on the wavelengths and transition rates. It was found that the wavelengths and transition rates obtained from the MCDHF-CI method depend strongly on the size and the type of the active space used in the calculations. It has been found that extending the active space of orbitals without careful control of the configuration state function base does not always lead to good quality MCDHF-CI results for highly ionized tungsten ions.
format	Preprint
id	arxiv_https___arxiv_org_abs_2405_09259
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Multiconfiguration Dirac-Hartree-Fock and configuration-interaction study of $4d-3p$ x-ray transitions in Cu- and Ni-like tungsten ions Kozioł, Karol Rzadkiewicz, Jacek Atomic Physics The $4d \to 3p$ x-ray transitions in Cu- and Ni-like tungsten ions have been studied theoretically. The multiconfiguration Dirac-Hartree-Fock (MCDHF) method and the large-scale relativistic configuration-interaction (CI) method have been employed in order to take into account electron correlation effects on the wavelengths and transition rates. It was found that the wavelengths and transition rates obtained from the MCDHF-CI method depend strongly on the size and the type of the active space used in the calculations. It has been found that extending the active space of orbitals without careful control of the configuration state function base does not always lead to good quality MCDHF-CI results for highly ionized tungsten ions.
title	Multiconfiguration Dirac-Hartree-Fock and configuration-interaction study of $4d-3p$ x-ray transitions in Cu- and Ni-like tungsten ions
topic	Atomic Physics
url	https://arxiv.org/abs/2405.09259

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