MCDHF calculations of isotope shifts of even-parity fine-structure levels in neutral osmium. (December 2016)

• Record Type: Journal Article
• Authors: Palmeri, P.; Quinet, P.; Bouazza, S.
• Is Part Of: Journal of quantitative spectroscopy & radiative transfer. Volume 185(2016)
• Page Start: 70
• Page End: 78
• Publication Date: 2016-12
• Subjects: Isotope shift -- Relativistic effects -- Neutral osmium -- Fine structure; Spectrum analysis -- Periodicals; Radiation -- Periodicals; Analyse spectrale -- Périodiques; Rayonnement -- Périodiques; Radiation; Spectrum analysis; Periodicals; 543.0858
• DOI: 10.1016/j.jqsrt.2016.08.014
• Languages: English
• ISSNs: 0022-4073

Abstract

Abstract: Ab initio multiconfiguration Dirac–Hartree–Fock (MCDHF) calculations have been carried out in order to determine the isotope shifts of all the fine-structure levels belonging to the even-parity configurations (5d+6s) 8 in neutral osmium, Os I. The theoretical predictions have been compared to laser spectroscopy measurements available in the literature showing a good agreement between theory and experiment. Abstract : Highlights: Ab initio fully relativistic MCDHF calculations of isotope shifts have been carried in neutral osmium. Relativistic normal mass shift, specific mass shift and field-shift factor electronic parameters are given for all known even-parity fine-structure levels belonging to the (5d+6s) 8 configurations. Comparison with experimental fine-structure level shifts shows a good agreement with our MCDHF predictions.