Article (Scientific journals)
Energy levels, weighted oscillator strengths, transition rates, lifetimes, hyperfine structures and isotope shifts of He-like-Sn deduced from the relativistic multiconfiguration Dirac–Hartree–Fock and second-order many-body perturbation theory calculations
Ben Nasr, S.; Salhi, D. E.; Quinet, Pascal et al.
2019In Atomic Data and Nuclear Data Tables, 129-130, p. 101279
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Keywords :
Hyperfine constants; Isotope shifts; Landé gJ factors; Multiconfiguration Dirac–Hartree–Fock; Second-order Many-Body Perturbation Theory; Weighted oscillator strength
Abstract :
[en] We disclose relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF)spectrum calculations for SnXLIX. Energy levels, weighted oscillator strengths, isotope shifts, hyperfine structure and Landé gJ factors are calculated for 127 odd- and even-parity states as well as lifetimes and transition rates between these states. To scrutinize the accuracy of our results, we have implemented parallel calculations using a Flexible Atomic Code (FAC)by introducing the Second-Order Many-Body Perturbation Theory (MBPT)method. Additionally, the Breit interaction and leading quantum electrodynamic effects (QED)are included as perturbations in extensive relativistic configuration interaction (RCI)calculations. We signal that, our calculations for SnXLIX are made for the first time and they provide to date the most accurate and complete atomic data related to this ion. © 2019 Elsevier Inc.
Disciplines :
Physics
Author, co-author :
Ben Nasr, S.;  Laboratory on Energy and Matter for Nuclear Sciences Development, LR16CNSTN02, Tunisia, National Center for Nuclear Sciences and Technologies, Sidi Thabet Technopark, Ariana, 2020, Tunisia, Faculty of Sciences of Tunis, University Tunis El Manar Tunis, Tunisia
Salhi, D. E.;  Laboratory on Energy and Matter for Nuclear Sciences Development, LR16CNSTN02, Tunisia, National Center for Nuclear Sciences and Technologies, Sidi Thabet Technopark, Ariana, 2020, Tunisia, Faculty of Sciences of Tunis, University Tunis El Manar Tunis, Tunisia
Quinet, Pascal  ;  Université de Liège - ULiège > Département de physique > Spectroscopie atomique et Physique des atomes froids
Jelassi, H.;  Laboratory on Energy and Matter for Nuclear Sciences Development, LR16CNSTN02, Tunisia, National Center for Nuclear Sciences and Technologies, Sidi Thabet Technopark, Ariana, 2020, Tunisia
Language :
English
Title :
Energy levels, weighted oscillator strengths, transition rates, lifetimes, hyperfine structures and isotope shifts of He-like-Sn deduced from the relativistic multiconfiguration Dirac–Hartree–Fock and second-order many-body perturbation theory calculations
Publication date :
2019
Journal title :
Atomic Data and Nuclear Data Tables
ISSN :
0092-640X
eISSN :
1090-2090
Publisher :
Academic Press Inc.
Volume :
129-130
Pages :
101279
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Ministry of Higher Education and Scientific Research: LR16CNSTN02
Available on ORBi :
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