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

Journal Article · Sun Sep 15 00:00:00 EDT 2019 · Atomic Data and Nuclear Data Tables

DOI:https://doi.org/10.1016/J.ADT.2019.04.001· OSTI ID:22852456

Ben Nasr, Sirine; Salhi, Dhia Elhak ^[1]; Quinet, Pascal ^[2]; Jelassi, Haikel ^[1]

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1. Laboratory on Energy and Matter for Nuclear Sciences Development, LR16CNSTN02 (Tunisia)
2. Physique Atomique et Astrophysique, Université de Mons, 7000 Mons (Belgium)

We disclose relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) spectrum calculations for SnXLIX. Energy levels, weighted oscillator strengths, isotope shifts, hyperfine structure and Landé g{sub J} 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.

• OSTI ID: 22852456
• Journal Information: Atomic Data and Nuclear Data Tables, Vol. 129-130; Other Information: © 2019 Elsevier Inc. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0092-640X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CONFIGURATION INTERACTION
ENERGY LEVELS
HARTREE-FOCK METHOD
HYPERFINE STRUCTURE
INTERACTIONS
MANY-BODY PROBLEM
OSCILLATOR STRENGTHS
PERTURBATION THEORY
QUANTUM ELECTRODYNAMICS
RELATIVISTIC RANGE
SPECTRAL SHIFT