scholarly journals Electric dipole transition probabilities, oscillator strengths, and lifetimes for Co16+

2016 ◽  
Vol 94 (1) ◽  
pp. 23-25 ◽  
Author(s):  
G. Çelik ◽  
Ş. Ateş ◽  
G. Tekeli
Keyword(s):  
Electric Dipole ◽  
Transition Probabilities ◽  
Transition Probability ◽  
Energy Levels ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Oscillator Strengths ◽  
Coupling Scheme ◽  
Wbepm Theory ◽  
First Time

The electric dipole transition probabilities, oscillator strengths, and lifetimes for Co16+ have been calculated within the weakest bound electron potential model (WBEPM) theory using experimental energy levels and theoretical expectation values of orbital radii corresponding to those energy levels under the assumption of the LS coupling scheme. In the calculations both multiplet and fine structure transitions are studied. The present results are consistent with earlier results given in the literature. Moreover, some transition probability and oscillator strength values not existing in the literature are reported for the first time.

Oscillator strengths and transition probabilities for singly ionized terbium

2014 ◽  
Vol 92 (9) ◽  
pp. 1043-1046 ◽  
Author(s):  
Şule Ateş ◽  
Yasin Gökçe ◽  
Gültekin Çelik ◽  
Murat Yıldız
Keyword(s):  
Transition Probabilities ◽  
Energy Levels ◽  
Electric Dipole Transition ◽  
Oscillator Strengths ◽  
Coupling Scheme ◽  
Heavy Atoms ◽  
Wbepm Theory ◽  
First Time ◽  
Bound Electron ◽  
Good Agreement

Electric dipole transition probabilities and oscillator strengths for singly ionized terbium (Tb II) have been calculated with the weakest bound electron potential model (WBEPM) theory using experimental energy levels and theoretical expectation values of orbital radii corresponding to those energy levels under the assumption of the Jj coupling scheme. The transition probabilities and the oscillator strengths calculated have been compared with available data in the literature. A good agreement has been obtained. In this work, the WBEPM theory has been applied to heavy atoms, such as Tb II, for the first time.

Transition probabilities of neutral scandium

2014 ◽  
Vol 92 (11) ◽  
pp. 1425-1429 ◽  
Author(s):  
İ.K. Öztürk ◽  
G. Çelik ◽  
Y. Gökçe ◽  
B. Atalay ◽  
F. Güzelçimen ◽  
...  
Keyword(s):  
Fine Structure ◽  
Electric Dipole ◽  
Parametric Analysis ◽  
Transition Probabilities ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Quantum Defect ◽  
Oscillator Strengths ◽  
Orbital Theory ◽  
First Time

The electric dipole transition probabilities and the oscillator strengths of neutral scandium have been calculated using the quantum defect orbital theory and the Cowan code for the 3d4s2–3d4s4p, 3d24s–3d24p, and 3d4s2–4s24p transitions. In addition, a parametric analysis of the fine structure for the 3d4s2configuration of even parity is performed using Cowan code. The transition probabilities and the oscillator strengths obtained in this work are mostly in agreement with the data obtained from different theoretical works given in the literature. Moreover, transition probabilities for 24 levels of neutral scandium are given for the first time.

scholarly journals Energies and electric dipole transitions for sodium-like gold

2016 ◽  
Vol 94 (11) ◽  
pp. 1167-1174 ◽  
Author(s):  
Gülay Günday Konan ◽  
Leyla Özdemir
Keyword(s):  
Structure Data ◽  
Atomic Structure ◽  
Electric Dipole ◽  
Transition Probabilities ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Experimental Results ◽  
Oscillator Strengths ◽  
Correlation Effects ◽  
Good Agreement

We have reported energies and electric dipole transition parameters, such as transition probabilities, oscillator strengths, line strengths, and wavelengths for Na-like gold (Au68+, Z = 79) using AUTOSTRUCTURE atomic code. Calculations include Breit and QED contributions besides correlation effects. A few of the results have been compared with available theoretical and experimental results in the literature. Our atomic structure data for sodium-like gold are in good agreement with others. Also we have presented new results for electric dipole transitions in sodium-like gold.

Energy levels and transition probabilities of N+, F3+, and Ne4+ ions

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yan Sun ◽  
Feng Hu ◽  
WenYi Li ◽  
DongDong Liu ◽  
MaoFei Mei ◽  
...  
Keyword(s):  
Electric Dipole ◽  
Transition Probabilities ◽  
Energy Levels ◽  
Theoretical Data ◽  
Electric Dipole Transition ◽  
Oscillator Strengths ◽  
Variation Method ◽  
Laboratory Plasmas ◽  
Future Work ◽  
Atomic Parameters

AbstractTerm energies, oscillator strengths, transition probabilities, and transition wavelengths among the low-lying states of (1s2)2s22p2, 2s22p3p, 2s2p3, 2s22p3s, and 2s22p3d 1,3,5L L = S, P, D, F in N+, F3+, and Ne4+ ions were calculated by using the multiconfiguration Rayleigh-Ritz variation method and restricted variation method. The transition oscillator strengths and transition probabilities for the electric dipole transitions are both given in length and velocity gauges. Deviations between these two gauge values are discussed. The calculated atomic parameters are in good agreement with the observed experimental results and other theoretical data. Furthermore, the uncertainty of each electric dipole transition is estimated. Several uncertainties of transition parameters are improved when comparing with values from national institute of standards and technology NIST database. Atomic parameters presented in this paper should be useful for identifying the levels as well as for precise spectral modeling in astrophysical and laboratory plasmas in the future work.

scholarly journals Transition Parameters for Doubly Ionized Lanthanum

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Betül Karaçoban ◽  
Leyla Özdemir
Keyword(s):  
Least Squares ◽  
Configuration Interaction ◽  
Electric Dipole ◽  
Transition Probabilities ◽  
Energy Levels ◽  
Relativistic Effects ◽  
Oscillator Strengths ◽  
Least Squares Fitting ◽  
Hartree Fock

The transition parameters such as the wavelengths, weighted oscillator strengths, and transition probabilities (or rates) for the nd (n=5−9)−nf (n=4−8), nd (n=5−9)−np (n=6−9), np (n=6−9)−ns (n=6−10), and ng (n=5−8)−nf (n=4−8) electric dipole (E1) transitions of doubly ionized lanthanum (La III, Z=57) have been calculated using the relativistic Hartree-Fock (HFR) method. In this method, configuration interaction and relativistic effects have been included in the computations combined with a least squares fitting of the Hamiltonian eigenvalues to the observed energy levels. We have compared the results obtained from this work with the previously available calculations and experiments in literature. We have also reported new transitions with the weighted transition probabilities greater than or equal to 105.

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

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Dhia Elhak Salhi ◽  
Soumaya Manai ◽  
Sirine Ben Nasr ◽  
Haikel Jelassi
Keyword(s):  
Missing Data ◽  
Quantum Electrodynamics ◽  
Transition Probabilities ◽  
Energy Levels ◽  
Oscillator Strengths ◽  
Accurate Data ◽  
Cadmium Ion ◽  
Hartree Fock ◽  
First Time ◽  
Good Agreement

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.

Calculation of Wavelengths, Transition Probabilities and Oscillator Strengths for E1 and M1 Transitions in Cu-Like Au Ion

2015 ◽  
Vol 723 ◽  
pp. 799-803
Author(s):  
Min Xu
Keyword(s):  
Excited States ◽  
Magnetic Dipole ◽  
Configuration Interaction ◽  
Electric Dipole ◽  
Transition Probabilities ◽  
Energy Levels ◽  
Oscillator Strengths ◽  
Forbidden Transitions ◽  
Calculation Results ◽  
Good Agreement

Wavelengths, transition probabilities and oscillator strengths have been calculated for electric dipole (E1) transitions and magnetic dipole (M1) transitions in Cu-like Au ion. These values are obtained in the configuration interaction (CI) and using the fully relativistic multiconfiguration Dirac-Fock (MCDF) method including quantum electrodynamical (QED) effect and Breit correction. Obtained energy levels of some excited states in Cu-like Au ion from the method are generally in good agreement with valuable theoretical and experimental results. The calculation results indicate that for high-Z highly ionized atom, some forbidden transitions are very important.

scholarly journals Calculations for energies, lifetimes, and transition parameters of E1 and E2 transitions in Mg II

2019 ◽  
Vol 97 (8) ◽  
pp. 828-841
Author(s):  
Betül Karaçoban Usta
Keyword(s):  
Electric Dipole ◽  
Transition Probabilities ◽  
Electric Quadrupole ◽  
Oscillator Strengths ◽  
Ionized Magnesium ◽  
Hartree Fock ◽  
First Time ◽  
Theoretical Results

The lifetimes for 2p6ns (n = 4–15), 2p6nd (n = 3–15), 2p6ng (n = 5–15), 2p6ni (n = 7–15), 2p6np (n = 3–15), 2p6nf (n = 4–15), 2p6nh (n = 6–15), 2p53s2, 2p53snp (n = 3, 4), 2p53p2, 2p53sns (n = 4, 5), 2p53snd (n = 3, 4), and 2p53s4f configurations and the transition parameters for the electric dipole (E1) and electric quadrupole (E2) transitions between valence excitation levels have been calculated using the relativistic Hartree–Fock method for singly ionized magnesium (Mg II, Z = 12). Comparisons are made with experimental and other available theoretical results to assess the reliability and accuracy of the present calculations. Moreover, some new wavelengths, oscillator strengths, and transition probabilities of E1 and E2 transitions and lifetime values have been obtained using this method. These results are reported for the first time in this work.

Sign in / Sign up

Export Citation Format

Share Document