Configuration–Interaction Perturbation Theory Calculations of Pu II

Autor:	Igor Savukov
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	CI-PT configuration-interaction perturbation theory g-factors isotope shifts Pu II Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Zdroj:	Atoms, Vol 8, Iss 3, p 39 (2020)
Druh dokumentu:	article
ISSN:	2218-2004 76824241
DOI:	10.3390/atoms8030039
Popis:	Configuration–interaction perturbation theory (CI–PT) is applied to calculations of low-energy states of Pu II. This ion is quite challenging due to a large number of possible determinants arising from seven valence electrons and strong relativistic effects. The CI–PT calculations agree with experiments for the energies and g-factors for many low-energy states that allowed positive identification of the theoretical levels. Isotope shifts were also used to aid in identification, and, in case of the odd states, fitting with three independent parameters was used to match theoretical isotope shifts to the experimental values with good accuracy. The CI–PT approach tested here on the Pu II ion can be generally used to calculate properties of many complex atoms, including U I that can find application in fundamental and applied science.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/29325c76824241b0920a2b5c131f1563 Zobrazit plný text záznamu View record in DOAJ