Theoretical investigation of energy levels and transition rates in Mo XXIX

2021 ◽  
pp. 108019
Author(s):  
Feng Hu ◽  
Yan Sun ◽  
Maofei Mei ◽  
Yuewu Pan ◽  
Hao Liu ◽  
...  
Keyword(s):  
Theoretical Investigation ◽  
Energy Levels ◽  
Transition Rates

Energy levels and transition rates for Al-like Cu XVII

2019 ◽  
Vol 127-128 ◽  
pp. 140-161 ◽  
Author(s):  
Y.W. Liu ◽  
R. Si ◽  
C.Y. Zhang ◽  
K. Wang ◽  
Y.X. Cai ◽  
...  
Keyword(s):  
Energy Levels ◽  
Transition Rates

RELATIVISTIC ENERGY, OSCILLATOR STRENGTHS AND TRANSITION RATES OF THE 1s2 2 ln l 1S(m)(n =2–6, m1–5) STATES FOR Be-LIKE SYSTEM

2005 ◽  
Vol 16 (06) ◽  
pp. 951-968 ◽  
Author(s):  
MENG ZHANG ◽  
BING-CONG GOU
Keyword(s):  
Experimental Data ◽  
Energy Levels ◽  
Oscillator Strengths ◽  
Relativistic Energy ◽  
Transition Rates ◽  
Isoelectronic Sequence ◽  
Polarization Effects ◽  
First Order ◽  
Variational Calculations ◽  
First Order Perturbation

Variational calculations are carried out with a multiconfiguration-interaction wave function to obtain the relativistic energies of the 1s2 2 ln l 1 S (m)(n =2–6, m1–5) states for the beryllium isoelectronic sequence (Z =4–10). Relativistic corrections and the mass polarization effects are evaluated with the first-order perturbation theory. The identifications of the energy levels for 1s2 2 ln l 1 S (m)(n =2–6, m1–5) states in the Be-like ions are reported. The oscillator strengths, transition rates and wavelengths are also calculated. The calculated results are compared with other theoretical and experimental data in the literature.

Energies, wavelengths, lifetimes, E1, M1, E2, and M2 transitions rates for the sulfur isoelectronic sequence Fe XI, Nb XXVI–In XXXIV

2017 ◽  
Vol 95 (4) ◽  
pp. 393-401 ◽  
Author(s):  
K. Wang ◽  
S. Li ◽  
R. Si ◽  
C.Y. Chen ◽  
J. Yan ◽  
...  
Keyword(s):  
Quantum Electrodynamics ◽  
Energy Levels ◽  
Theoretical Data ◽  
Electric Quadrupole ◽  
Oscillator Strengths ◽  
Transition Rates ◽  
Isoelectronic Sequence ◽  
Fusion Plasma ◽  
Magnetic Quadrupole ◽  
Theoretical Results

Energies, wavelengths, lifetimes, oscillator strengths, electric dipole (E1), electric quadrupole (E2), magnetic dipole (M1), and magnetic quadrupole (M2) transition rates among the 42 fine structure levels belonging to the 3s23p4, 3s23p33d, and 3s3p5 configurations for S-like Fe and S-like ions with 41 ≤ Z ≤ 49 are calculated using the fully relativistic multiconfiguration Dirac–Fock (MCDF) method. In the calculations, contributions from correlations within the n = 6 complex, Breit interaction, and quantum electrodynamics effects are included. Detailed comparisons are made between the present results and the available experimental and other theoretical data. We found that our calculated energy levels generally agree within ≤0.5% with the experimentally compiled results, and the transition rates agree within ≤12% with other theoretical results for a majority of the transitions. These accurate theoretical data should be beneficial in fusion plasma research and astrophysical applications.

scholarly journals Extended Calculations of Energy Levels and Transition Rates of Nd ii-iv Ions for Application to Neutron Star Mergers

2019 ◽  
Vol 240 (2) ◽  
pp. 29 ◽  
Author(s):  
Gediminas Gaigalas ◽  
Daiji Kato ◽  
Pavel Rynkun ◽  
Laima Radžiūtė ◽  
Masaomi Tanaka
Keyword(s):  
Neutron Star ◽  
Energy Levels ◽  
Transition Rates

Breit-Pauli energy levels and transition rates for the carbonlike sequence

2001 ◽  
Vol 79 (7) ◽  
pp. 955-976 ◽  
Author(s):  
G Tachiev ◽  
C Froese Fischer
Keyword(s):  
Web Site ◽  
Energy Levels ◽  
Simultaneous Optimization ◽  
Transition Rates ◽  
Optimization Scheme ◽  
Uncertainty Estimates ◽  
Radial Basis ◽  
Theory And Experiment

Breit–Pauli results for energy levels, lifetimes, and some transition data are reported for all levels up to 2s22p3d 1PJo of the C-like spectrum for 7 [Formula: see text] Z [Formula: see text] 15. For all but the lowest members of the sequence, these include all the states of the 2s22p2, 2s2p3, 2p4, 2s22p3s, 2s22p3p, and 2s22p3d configurations. For carbon, only the states for the 2s22p2, 2s2p3, and 2s22p3s configurations are included. A simultaneous optimization scheme was applied so that a radial basis could be determined for a set of terms that mix in the Breit–Pauli approximation. All results have been posted at a Web site. In this paper, lifetimes are reported and, in addition, results for N II, O III, and Si IX are critically evaluated. Energy levels are compared with experiment and adjusted transition rates, along with uncertainty estimates are presented. Selected results are compared with other theory and experiment. PACS Nos.: 31.25Jf, 32.30Jc, 32.70Cs

Effect of Core Excitations on 29Si and on the Giant Dipole Resonance in 28Si

1973 ◽  
Vol 51 (9) ◽  
pp. 988-992 ◽  
Author(s):  
I. P. Johnstone ◽  
B. Castel
Keyword(s):  
Satisfactory Agreement ◽  
Giant Dipole Resonance ◽  
Energy Levels ◽  
Transition Rates ◽  
Dipole Strength ◽  
Dipole Resonance ◽  
Spectroscopic Factors ◽  
Core Excitations

The structure of 29Si is studied in a model which couples a neutron onto low-lying core states of 28Si. Very satisfactory agreement is obtained for energy levels, E2 transition rates, and spectroscopic factors. The splitting of the 28Si dipole strength is then investigated using a particle–core and hole–core interaction derived from this 29Si study, and the effect of various approximations is examined.

scholarly journals Energy levels and transition rates for the boron isoelectronic sequence: Si X, Ti XVIII – Cu XXV

2013 ◽  
Vol 559 ◽  
pp. A100 ◽  
Author(s):  
P. Jönsson ◽  
J. Ekman ◽  
S. Gustafsson ◽  
H. Hartman ◽  
L. B. Karlsson ◽  
...  
Keyword(s):  
Energy Levels ◽  
Transition Rates ◽  
Isoelectronic Sequence
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