Multiconfiguration Dirac–Hartree–Fock calculations of energy levels, wavelengths, weighted oscillator strengths, transitions probabilities and lifetimes of Cd XLVII

Abstract Energy levels, wavelengths, weighted oscillator strengths, transition probabilities and lifetimes are calculated for all levels of 1s 2 and 1snl (n = 2–6) configurations of He-like cadmium ion (Cd XLVII). The calculations were carried out using three codes GRASP2018, FAC and AMBiT in order to provide theoretically the most accurate data. Transition probabilities are reported for all the E1, E2, M1 and M2 transitions. Breit interactions and quantum electrodynamics effects are included in the RCI calculations. Comparisons were made with other calculations and a good agreement was found which confirms the reliability of our results. We present some missing data for the He-like cadmium in this paper for the first time.

[1]  D. E. Salhi,et al.  Multiconfiguration Dirac–Hartree–Fock energy levels, weighted oscillator strengths, transitions probabilities, lifetimes, hyperfine interaction constants, Landé g-factors and isotope shifts of O VII , 2021 .

[2]  P. Quinet,et al.  Energy levels, transition rates, lifetimes of He-like-ions with Z=72–76 deduced from relativistic multiconfiguration Dirac–Hartree–Fock and many body perturbation theory calculations , 2021 .

[3]  D. E. Salhi,et al.  MCDHF/RCI extended calculations of energy levels, radiative properties, AJ, BJ hyperfine interaction constants, and Landé gJ-factors for Ar XVII , 2020 .

[4]  P. Quinet,et al.  Energy levels, weighted oscillator strengths, transition rates, lifetimes of He-like-Pt deduced from the relativistic multiconfiguration Dirac–Hartree–Fock and relativistic configuration interaction theory calculations , 2020 .

[5]  L. Głowacki.  Relativistic configuration interaction calculations of transitions for low-lying states in the helium isoelectronic sequence , 2020 .

[6]  Sirine Ben Nasr,et al.  Extensive and accurate energy levels, transition rates, lifetimes, hyperfine structures and isotope shifts for the Rb XXXVI spectrum of plasma interest , 2020 .

[7]  P. Quinet,et al.  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 , 2019, Atomic Data and Nuclear Data Tables.

[8]  A. Surzhykov,et al.  Theoretical Energy Levels of 1sns and 1snp States of Helium-Like Ions , 2019, Journal of Physical and Chemical Reference Data.

[9]  P. Quinet,et al.  Multiconfiguration Dirac–Hartree–Fock energy levels, weighted oscillator strengths, transitions probabilities, lifetimes, hyperfine constants, Landé g-factors and isotope shifts of Xe LIII , 2019, Atomic Data and Nuclear Data Tables.

[10]  Gediminas Gaigalas,et al.  GRASP2018 - A Fortran 95 version of the General Relativistic Atomic Structure Package , 2019, Comput. Phys. Commun..

[11]  Enrico V. Kahl,et al.  ambit: A programme for high-precision relativistic atomic structure calculations , 2018, Comput. Phys. Commun..

[12]  D. E. Salhi,et al.  Atomic data for allowed and forbidden transitions of helium-like neon , 2018 .

[13]  Gediminas Gaigalas,et al.  JJ2LSJ Transformation and Unique Labeling for Energy Levels , 2017 .

[14]  A. Singh,et al.  Calculation of energy levels, lifetimes and radiative data for La XXIX to Sm XXXIV , 2016 .

[15]  F. Keenan,et al.  Energy levels and radiative rates for transitions in Cr-like Co IV and Ni V , 2015, 1509.07648.

[16]  P. Beiersdorfer,et al.  Atomic data and theoretical X-ray spectra of Ge-like through V-like W ions , 2014 .

[17]  F. Keenan,et al.  Energy levels, radiative rates and electron impact excitation rates for transitions in He-like Fe XXV, Co XXVI, Ni XXVII, Cu XXVIII and Zn XXIX , 2013 .

[18]  A. Natarajan,et al.  Kβ X-ray emission from He-like ions , 2008 .

[19]  I. P. Grant,et al.  Relativistic quantum theory of atoms and molecules , 2006 .

[20]  E. Landi,et al.  Atomic Data for High-Energy Configurations in Fe XVII-XXIII , 2006 .

[21]  Ming Feng Gu,et al.  The Flexible Atomic Code , 2004 .

[22]  G. Drake.  Theoretical energies for the n = 1 and 2 states of the helium isoelectronic sequence up to Z = 100 , 1988 .

[23]  Ian P. Grant,et al.  An atomic multiconfigurational Dirac-Fock package , 1984 .

[24]  I P Grant,et al.  Gauge invariance and relativistic radiative transitions , 1974 .