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Energy levels for configurations 3p63d94ℓ, 3p53d104ℓ (ℓ=1–3) (Z=36–56) and radiative transition probabilities to the ground state in Ni-like ions. Application to X-ray lasers modeling I Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2021-02-03 E.P. Ivanova
Relativistic perturbation theory with model potential of zero approximation is used for calculation of the energy levels 3p63d94ℓ, 3p53d104ℓ (ℓ=1–3) of Ni-like ions with Z=36–56. The known ionization potentials of Ni-like ions used in calculations are corrected here. The dipole and quadrupole electric and magnetic probabilities of radiative transitions to the ground state are presented in graphs. It
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Complete collision data set for electrons scattering on molecular hydrogen and its isotopologues: II. Fully vibrationally-resolved electronic excitation of the isotopologues of H2 (X1Σg+) Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2021-01-21 Liam H. Scarlett; Dmitry V. Fursa; Mark C. Zammit; Igor Bray; Yuri Ralchenko
We present a comprehensive set of vibrationally-resolved cross sections for electron-impact electronic excitation of the isotopologues of molecular hydrogen (D2, T2, HD, HT, and DT) initially in the ground electronic state. We apply the adiabatic-nuclei molecular convergent close-coupling (MCCC) method to calculate cross sections from threshold to 500 eV for excitation of all bound vibrational levels
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Electron transfer from atomic hydrogen to multiply-charged nuclei at intermediate and high energies Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2021-02-25 D. Delibašić; N. Milojević; I. Mančev; Dž. Belkić
We report on theoretical total cross sections for electron capture from the ground state of atomic hydrogen H(1s) by fast multiply-charged nuclei H+, He2+, Li3+, Be4+, B5+, C6+, N7+, O8+ and F9+. The prior form of the boundary-corrected continuum intermediate states (BCIS) method is used. For a single fixed initial ground-state (i=1s), comprehensive computations are carried out for a sequence of the
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Reactive collisions between electrons and BeT+: Complete set of thermal rate coefficients up to 5000 K Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2021-02-16 N. Pop; F. Iacob; S. Niyonzima; A. Abdoulanziz; V. Laporta; D. Reiter; I.F. Schneider; J.Zs. Mezei
Rate coefficients for the dissociative recombination, vibrational excitation and vibrational de-excitation of the BeT+ ion for all vibrational levels of its ground electronic state (X1Σ+,vi+=0,…,27) are reported, including in the calculation the contribution of super-excited states of the BeT complex pertaining to three electronic symmetries - 2Π, 2Σ+, and 2Δ. These data are suitable for the kinetic
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Properties of heaviest nuclei with 98≤Z≤126 and 134≤N≤192 Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-12-19 P. Jachimowicz; M. Kowal; J. Skalski
We systematically determine ground-state and saddle-point shapes and masses for 1305 heavy and superheavy nuclei with Z=98–126 and N=134–192, including odd-A and odd–odd systems. From these we derive static fission barrier heights, one- and two-nucleon separation energies, and Qα values for g.s. to g.s. transitions. Our study is performed within the microscopic–macroscopic method with the deformed
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Theoretical study on radii of neutral atoms and singly charged negative ions Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-11-28 Mingmin Luo; Guangxin Min; Guannan Guo; Xuemei Zhang
Systematic theoretical calculations of the ground state of atomic radii and singly charged negative ionic radii for elements with 1 ≤ Z ≤ 118 have been performed in a multi-configuration Dirac–Hartree–Fock method including all relativistic effects. Three radii of atoms and singly charged negative ions are computed in this work. They are the radii of the maximum radial charge density of every subshell
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Spectroscopic factors of atomic subshells for HAXPES applications Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-12-07 V.G. Yarzhemsky; M.B. Trzhaskovskaya
Theoretical photoionization cross sections which are used in the XPS and HAXPES data processing correspond to the main line along with shake-up satellites and shake-off continuum. The main line intensity is proportional to the photoionization cross section and the spectroscopic factor. Nevertheless photoionization cross sections can be used in XPS for estimation of relative intensities since the spectroscopic
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Radiative recombination data for low-charged tungsten ions: IV. W3+–W13+ Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-12-01 M.B. Trzhaskovskaya; V.K. Nikulin; Yu.N. Tsarev
The radiative recombination and photoionization cross sections as well as the radiative recombination rate coefficients and the radiated power loss rate coefficients are presented for the low-charged tungsten ions from W3+ to W13+. The data are essential to diagnostic and modeling the divertor plasmas impurities in the ITER tokamak because tungsten has been resolved to use as a plasma-facing material
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Electron-impact excitation cross sections for Ar and Ar+ by unitarized distorted-wave approximation Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-11-05 D.-H. Kwon; Y.-S. Cho
Unitarization for a relativistic distorted-wave approximation has been made by using two types of scattering matrix for reactance matrix and the electron-impact excitation cross sections for Ar and Ar+ are calculated by the unitarized relativistic distorted-wave method. The unitarization by using the scattering matrix obtained from diagonalization of the reactance matrix significantly reduces the cross
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Theoretical level energies and transition data for ion W29+ Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-10-21 R. Karpuškienė; R. Kisielius
The quasirelativistic approach was used to derive transition data for the Rh-like W29+ tungsten ion. The quasirelativistic approach was developed specifically for the calculation of spectral parameters of highly charged ions. The relativistic effects were taken into account in the Breit–Pauli approximation. The configuration interaction method was applied to include electron correlation effects. The
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Radiative transition properties of singly charged magnesium, calcium, strontium and barium ions Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-10-21 Mandeep Kaur; Danish Furekh Dar; B.K. Sahoo; Bindiya Arora
Accurate values of electric dipole (E1) amplitudes along with their uncertainties for a number of transitions among low-lying states of Mg+, Ca+, Sr+, and Ba+ are listed by carrying out calculations using a relativistic all-order many-body method. By combining experimental wavelengths with these amplitudes, we quote transition probabilities, oscillator strengths and lifetimes of many short-lived excited
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Extended calculations with spectroscopic accuracy: Energy levels and radiative rates for O-like ions between Ar XI and Cr XVII Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-11-07 C.X. Song; C.Y. Zhang; K. Wang; R. Si; M. Godefroid; P. Jönsson; W. Dang; X.H. Zhao; J. Yan; C.Y. Chen
Using the multiconfiguration Dirac–Hartree–Fock and the relativistic configuration interaction methods, a consistent set of transition energies and radiative transition data for the main states of the 2s22p4, 2s2p5, 2p6, 2s22p33s, 2s22p33p, 2s22p33d, 2s2p43s, 2s2p43p, and 2s2p43d configurations in O-like Ions between Ar XI (Z=18) and Cr XVII (Z=24) is provided. Our data set is compared with the NIST
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Structural properties of hydrogen-like ions (Z= 1–18) under quantum and classical plasma environment Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-09-18 Sujay Kr. Nayek; Santanu Mondal; Jayanta K. Saha
A simple pure-exponential type wavefunction in the Ritz variational framework has been proposed to estimate precise eigenenergies and radial distributions of nl [n= 1–8; l= 0–7] states of 2L [L= 0–7] symmetry of hydrogen iso-electronic ions (Z=1–18) under classical weakly coupled plasma and dense quantum plasma environment. Critical screening parameters, beyond which the ions cease to be in a bound
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Theoretical level energies, radiative lifetimes and transitions in W IX Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-08-24 Karol Kozioł; Jacek Rzadkiewicz
The atomic states of the W IX (W8+) tungsten ion lying below the W9+ ionisation threshold have been studied theoretically, employing the multiconfiguration Dirac–Hartree–Fock method with configuration interaction. The level electronic structures and their energies are presented. The electric dipole (E1), magnetic dipole (M1), electric quadrupole (E2), and magnetic quadrupole (M2) radiative transitions
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Complete collision data set for electrons scattering on molecular hydrogen and its isotopologues: I. Fully vibrationally-resolved electronic excitation of H2(X1Σg+) Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-07-15 Liam H. Scarlett; Dmitry V. Fursa; Mark C. Zammit; Igor Bray; Yuri Ralchenko; Kayla D. Davie
We present a comprehensive set of vibrationally-resolved cross sections for electron-impact electronic excitation of molecular hydrogen suitable for implementation in collisional-radiative models. The adiabatic-nuclei molecular convergent close-coupling method is used to calculate cross sections for excitation of all bound vibrational levels and dissociative excitation of the B1Σu+, C1Πu, EF1Σg+, B′1Σu+
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Electron impact single ionization for Si atom Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-07-10 Valdas Jonauskas
Single ionization by electron impact is studied in the Si atom by performing level-to-level calculations. Direct and indirect processes of the ionization are investigated for all levels of the ground configuration. It is demonstrated that cross sections are heavily dependent on the initial level for which the ionization is considered. The cross sections of the indirect process differ by more than a
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Dia- and paramagnetic contributions to magnetizabilities of relativistic hydrogenlike atoms in some low-lying discrete energy eigenstates Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-06-29 Patrycja Stefańska
In this paper we present tabulated data for relative diamagnetic and paramagneticcontributions to the magnetizability (χ) of the relativistic hydrogenlike atoms with a pointlike, motionless and spinless nucleus of charge Ze. Utilizing general analytical formulas for the diamagnetic (χd) and paramagnetic (χp) components of χ, recently derived by us (P. Stefańska, 2020) with the aid of the Gordon decomposition
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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 Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-06-01 Sirine Ben Nasr, Soumaya Manai, Dhia Elhak Salhi, Pascal Quinet, Haikel Jelassi
We disclose relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) spectrum calculations for He-like-Pt. Energy levels and weighted oscillator strengths are calculated for 127 odd- and even-parity states as well as lifetimes and transition rates between these states. For comparative purpose, we have implemented parallel calculations using a Flexible Atomic Code (FAC) by introducing the relativistic
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Radiative and Auger cascade following 2p vacancy creation in Fe2+ Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-05-23 Sigitas Kučas, Paulius Drabužinskis, Valdas Jonauskas
Radiative and Auger cascade following the 2p shell vacancy creation in the Fe2+ ion is studied by analysing transitions among energy levels and subconfigurations. Branching ratios of the cascade are analysed and main decay mechanisms are identified for all levels of the Fe3+ 2p53d6 configuration. The study shows that ion yield strongly depends on the level the cascade starts from. The cascade produces
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Model potential study of Rydberg one-electron spectrum of thallium Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-05-22 J. Migdalek
Semi-empirical model potential calculations of excitation energies, fine structure splittings, oscillator strengths and line strengths ratios were computed for high Rydberg transitions in principal, sharp and diffuse series of thallium one-electron spectrum with allowance for core–valence electron correlations in core polarization picture. Relativistic effects are fully included through solving Dirac
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Relativistic configuration interaction calculations of transitions for low-lying states in the helium isoelectronic sequence Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-04-24 Leszek Głowacki
The excitation energy and the oscillator strength values have been computed for the 1s2–1s2p, 1s2s–1s2p, 1s2s–1s3p transitions in the helium isoelectronic sequence (Z=2 through Z=116). The importance of the Breit interaction and radiative corrections to the oscillator strength as well as transition energies have been studied. The method of calculations was based on the relativistic hydrogen-like (with
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Semi-empirical description of the fine structure and the radiative parameters for atomic tin. Odd levels Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-04-06 M. Elantkowska, J. Ruczkowski, S. Wilman, J. Dembczyński
In this work a semi-empirical analysis of the odd configurations system of atomic tin is presented. A multiconfiguration parametric calculation on the basis of 184 configurations have been performed by taking into account the second-order of the perturbation theory. Satisfactory consistency of the values of experimental and calculated energy levels and Landé gJ was found. The eigenvector amplitudes
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Energy levels, transition rates and electron impact excitation rates for B-like Kr XXXII Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-04-03 Y.T. Li, R. Si, J.Q. Li, C.Y. Zhang, K. Yao, K. Wang, M.F. Gu, C.Y. Chen
Energy levels and transition rates for electric-dipole, electric-quadrupole, electric-octupole, magnetic-dipole, and magnetic-quadrupole transitions among the levels arising from the n≤ 5 configurations in B-like Kr XXXII are calculated by using two state-of-the-art methods, namely, the multi-configuration Dirac–Hartree–Fock (MCDHF) approach and the second-order many-body perturbation theory (RMBPT)
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Compilation of recent atomic mass measurements and deduced quantities Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-03-24 Liam Kroll, Balraj Singh, Alan A. Chen
Measured atomic masses published from 2016 onwards have been compiled and are presented here. The measurements are compared to the values from the Atomic Mass Evaluation 2016 (Wang et al., 2017). β-, and α-decay Q-values as well as one- and two-nucleon separation energies are deduced using the newly measured mass excesses.
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Calculations of transition rates in erbium-like ions Lu IV, Hf V and Ta VI using the Ab initio MCDHF-RCI and semi-empirical HFR methods Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-03-23 E. Bokamba Motoumba, S. Enzonga Yoca, P. Quinet, P. Palmeri
In the present paper, the radiative properties of three ions belonging to the erbium isoelectronic sequence, i.e. Lu IV, Hf V and Ta IV, are reported and the effect of configuration interaction on these properties are taken into account for the first time to our knowledge. These heavy elements with Z=71–73 are located near to tungsten (Z=74) in the Periodic Table and are of potential interest in controlled
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Semi-empirical model potential study of Rydberg transitions in gold one-electron spectrum Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-02-06 J. Migdalek
Semi-empirical model potential calculations of oscillator strengths for Rydberg transitions in principal, sharp and diffuse series of gold one-electron spectrum are presented. Relativistic effects are fully included through solving Dirac equations and core–valence electron correlation is represented in core polarization picture by appropriate part in model potential. The dipole-moment operator of transition
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Isotope shifts in neutral and singly-ionized calcium Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-01-25 A. Kramida
All available experimental data on isotope shifts and absolute frequency measurements in the optical spectra of Ca I and Ca II are re-evaluated, and from them complete tables of isotope shifts and energy levels of all Ca isotopes from 36 to 52 are derived. A global least-squares fitting of these data was performed. From this fit, the field and mass shift constants for all involved transitions and energy
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Ab initio calculations of atomic parameters of Mo XVIII of fusion interest Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-01-18 Z.B. Chen
The relativistic multiconfiguration Dirac–Hartree–Fock (MCDHF) method has been employed to calculate the atomic parameters of Mo XVIII, which are important for fusion determination of plasma properties in different conditions. Atomic data, such as energy levels, lifetimes, wavelengths, spectroscopic labels, and transition rates for the transitions among the lowest 112 states of the 3 s23p63d7, 3 s23p53d8
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Recommended values for β+-delayed proton and α emission Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2020-01-09 J.C. Batchelder
Beta+-delayed proton (or α) emission is a typical decay mode of very neutron-deficient nuclei. Valuable information for the ground state in the precursor, such as half-life, spin, and parity, can be obtained by studying the β+-p decay properties. The high efficiency and unique experimental signature for detecting protons allow one to study states in the β +-decay daughter that are not accessible through
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Review of experimental photon-induced Kβ/Kα intensity ratios Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-11-29 S. Daoudi, A. Kahoul, N. Kup Aylikci, J.M. Sampaio, J.P. Marques, V. Aylikci, Y. Sahnoune, Y. Kasri, B. Deghfel
In this paper, we present a compilation of the measured photon-induced Kβ/Kα intensity ratio values published in the literature from 1969 to 2018. In the considered period, we found about 1118 values (127 papers) for elements with 11≤Z≤96. The analysis of the distribution of these experimental data values in function of the atomic number shows that almost all the elements from 11Na to 96Cm are covered
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Theoretical level energies and transition data for ion W28+ Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-10-31 R. Karpuškienė, R. Kisielius
The ab initio quasirelativistic approach was used to derive transition data for Pd-like tungsten W28+ ion. This approach was developed specifically for the calculation of spectral parameters for highly charged ions. The relativistic effects were taken into account in the Breit–Pauli approximation. The configuration interaction method was applied to include electron correlation effects. The ground configuration
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Data for secondary-electron production from ion precipitation at Jupiter III: Target and projectile processes in H+, H, and H− + H2 collisions Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-10-26 D.R. Schultz, H. Gharibnejad, T.E. Cravens, S.J. Houston
To extend the range of data required for modeling the secondary-electron production from ion precipitation into the upper atmosphere of Jupiter, inelastic processes for collisions of 1 keV to 25 MeV H+, H, and H− with H2 are considered. As in other work treating the dominant heavy-ion species of magnetospheric origin, O and S ions (Schultz et al., 2017, 2019; Gharibnejad et al., 2019) the classical
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Natural widths, lifetimes, and fluorescence yields for the double K-shell hole states of atoms with 10 ≤ Z ≤ 30 Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-09-19 Karol Kozioł, Jacek Rzadkiewicz
The natural widths, lifetimes, and fluorescence yields for the double K-shell hole states have been calculated for atoms with 10 ≤ Z ≤ 30. The Grasp2018 package was adopted to carry out a systematic computation of the Khα1,2 and Khβ1,3 radiative transition rates and Fac was used to calculate the KK−KLL, KK−KLM, and KK−KMM non-radiative Auger transition rates. The dependence of the radiative and non-radiative
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Energy levels, oscillator strengths, radiative transition probabilities, level lifetimes and electron-impact excitation rate coefficients for Ne-like Mo XXXIII Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-07-30 Cristian Iorga, Viorica Stancalie
The energy levels, oscillator strengths, radiative decay rates, lifetimes, collision strengths, direct and resonance electron-impact excitation rate coefficients have been computed for the 257 fine-structure levels arising from 1s22s22p5nl and 1s22s2p6n′l′ configurations belonging to the Mo32+ ion with n≤7, l≤4 and n′≤5, l′≤4. The model-potential approach is used for the target ion structure calculations
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Paschen-series spectral lines of H atoms in a strong magnetic field Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-07-05 F.L. Liu, L.B. Zhao
Paschen-series spectral lines have been calculated for H atoms in the presence of strong magnetic fields. Wavelengths and transition probabilities are presented for 54 electric dipole transitions as a function of magnetic field strengths ranging from ∼ 0.001 a.u. to ∼ 1 a.u. The effect of the finite proton mass is taken into account. The present calculations involve five symmetries 0±, (−1)±, and (−2)+
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Energy levels and radiative rates for transitions in S-like Sc VI, V VIII, Cr IX, and Mn X Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-06-27 Kanti M. Aggarwal
Energy levels, radiative rates and lifetimes are reported for four S-like ions, namely Sc VI, V VIII, Cr IX, and Mn X. Two independent atomic structure codes, namely the general-purpose relativistic atomic structure package (grasp) and the flexible atomic code (fac), have been adopted for calculating the energy levels, with differing amounts of configuration interaction. This is mainly to make some
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Energies and transition parameters of fusion interest in Cr-like ions between Hf XLIX and Au LVI Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-06-25 Zhan-Bin Chen, Yan-Shan Tian, Cui-Cui Sang, Xiang-Li Wang, Kai Wang, Xue-Ling Guo
Using fully relativistic multiconfiguration Dirac–Fock (MCDF) wavefunctions in an active space approximation, we perform systematic calculations of the energies, wavelengths, and lifetimes for the lowest 143 levels belonging to the 3p63d6 and 3p53d7 configurations of Cr-like ions between Hf XLIX and Au LVI. Additionally, line strengths, oscillator strengths, and radiative rates for the electric dipole
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Table of electronic factors for E0 electron and electron–positron pair conversion transitions Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-06-25 J.T.H. Dowie, T. Kibédi, T.K. Eriksen, A.E. Stuchbery
A new tabulation of electronic factors is reported for electron conversion for elements of Z from 5 to 126 and electronic factors for electron–positron pair conversion for elements of even Z from 4 to 100. The electronic factors for electron conversion, ΩCE(E0), were calculated using a modified version of the CATAR program developed by Pauli and Raff with a relativistic-Hartree–Fock–Slater approach
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State-selective and total cross sections for electron capture from the K-shell of multi-electron atoms by fully stripped projectiles Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-06-24 I. Mančev, N. Milojević, Dž. Belkić
Capture of a K-shell electron by bare fast ions H+, He2+ and Li3+ from multi-electron atomic targets (carbon, nitrogen, oxygen, neon and argon) is theoretically studied by means of the four-body boundary-corrected first Born approximation. In a wide impact energy interval ranging from 100 to 40 000 keV/amu, extensive tables of the obtained state-selective cross sections Qnlm are presented for each
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Electron capture, ionization and excitation cross sections for keV collisions between fully stripped ions and atomic hydrogen in ground and excited states Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-06-17 Hicham Agueny, Jan Petter Hansen, Alain Dubois, Abdelkader Makhoute, Abdelmalek Taoutioui, Nicolas Sisourat
Using a semiclassical close-coupling approach, we have calculated electron capture, excitation and ionization cross sections for collisions of fully stripped hydrogen, helium and lithium ions with atomic hydrogen in the ground state and in all excited states up to n=3. The cross sections for collision energies between 1 and 100 keV/u are given in table form. Furthermore, we provide estimates of the
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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 Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-05-28 Sirine Ben Nasr, Dhia Elhak Salhi, Pascal Quinet, Haikel Jelassi
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
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Dirac–Fock photoionization parameters for HAXPES applications, Part II: Inner atomic shells Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-05-22 M.B. Trzhaskovskaya, V.G. Yarzhemsky
Presented here are the photoionization cross sections and parameters of the photoelectron angular distribution for inner atomic subshells with binding energies beyond 1.5 keV in the photon energy range from 2 keV to 12 keV. The calculations are an extension of our previous paper containing the photoionization parameters for comparatively outer shells with binding energies lower than 1.5 keV (Trzhaskovskaya
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Shape functions and singly differential cross sections of bremsstrahlung at electron energies from 10 eV to 3 MeV for Z = 1–100 Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-03-25 Andrius Poškus
This work describes a library of shape functions and singly differential cross sections of bremsstrahlung due to interaction of the electrons with energies from 10 eV to 3 MeV with neutral atoms. The calculations have been performed using an updated version of the set of codes BREMS, which was described in a previous publication. The calculation method is based on the relativistic partial-wave formulation
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Second spectrum of Manganese (Mn II), Part II: Revised fine and hyperfine structure analysis of odd-parity levels Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-03-19 Safa Bouazza
In the first part of this global work, we have achieved the fine and hyperfine structure (fs and hfs) parametric study of even-parity levels, which confirmed in the whole the well-founded basis of previous analyses. Unfortunately, in the present work devoted to odd-parity levels, some divergences appear. For instance, the three levels w5P3, w5P2, w5P1 located respectively at 86898, 86937 and 86961
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Radiative rates for E1, E2, M1, and M2 transitions in F-like ions with 12 ≤ Z ≤ 23 Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2019-01-22 Kanti M. Aggarwal
In this paper, energy levels, radiative rates and lifetimes are reported for 11 F-like ions with 12 ≤ Z ≤ 23. Up to 198 levels (depending on the ion) have been considered which include 113 of the 2s22p5, 2s2p6, 2s22p43ℓ, 2s2p53ℓ, and 2p63ℓ configurations. The general-purpose relativistic atomic structure package (grasp) and the flexible atomic code (fac) have been adopted for calculating the energy
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Erratum to “A critical compilation of experimental data on spectral lines and energy levels of hydrogen, deuterium, and tritium” [At. Data Nucl. Data Tables 96 (2010) 586–644] Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-12-13 A. Kramida
In the critical compilation of experimental and theoretical data on the H, D, and T spectra (Kramida, 2010), there were errors in some of the hyperfine structure parameters for deuterium. These errors are corrected here.
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Energy levels and transition rates for Al-like Cu XVII Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-12-04 Y.W. Liu, R. Si, C.Y. Zhang, K. Wang, Y.X. Cai, J. Xu, M.F. Gu, C.Y. Chen
Energy levels and transition rates for electric-dipole, electric-quadrupole, magnetic-dipole, and magnetic-quadrupole transitions among the levels arising from the n≤5 configurations in Al-like Cu XVII are calculated respectively by two state-of-the-art methods, namely, the Multi-Configuration Dirac–Hartree–Fock approach and the second-order many-body perturbation theory. Our results are compared with
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Recommended electron-impact excitation and ionization cross sections for Be I. Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-11-23 Dipti,T Das,K Bartschat,I Bray,D V Fursa,O Zatsarinny,C Ballance,H-K Chung,Yu Ralchenko
Analytic fits to the recommended electron-impact excitation and ionization cross sections for Be I are presented. The lowest 19 terms of configurations 2s nl (n ≤ 4) and 2p2 terms below the first ionization limit are considered. The fits are based on the accurate calculations with the convergent close coupling (CCC) method as well as the B-spline R-matrix (BSR) approach. The fitted cross sections provide
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Data for secondary-electron production from ion precipitation at Jupiter II: Simultaneous and non-simultaneous target and projectile processes in collisions of Oq+ + H2 (q=0–8) Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-10-11 D.R. Schultz, H. Gharibnejad, T.E. Cravens, S.J. Houston
To improve the physical completeness of the data previously calculated (Schultz et al., 2017) to enable modeling of the effects of secondary electrons produced by energetic ion precipitation at Jupiter, we extend the treatment to include inelastic processes that occur simultaneously on the projectile (Oq+, q=0–8)) and target (H2). Here, processes considered in the previous work (single and double ionization
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Relativistic large scale CI calculations of energies, transition rates and lifetimes in Ca-like ions between Co VIII and Zn XI Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-09-17 Bowen Li, Xiaokai Xu, Ximeng Chen
Energies, E1, E2 and M1 transition rates and lifetimes are reported for the lowest 134 fine-structure levels of the 3p63d2, 3p63d4s, 3p53d3 and 3p63d4p configurations in all Ca-like ions between Co VIII and Zn XI. The calculations have been performed using the multiconfiguration Dirac–Hartree–Fock (MCDHF) and relativistic configuration interaction (RCI) methods. Important core–valance and core–core
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Multiconfiguration Dirac–Hartree–Fock energy levels, weighted oscillator strengths, transitions probabilities, lifetimes, hyperfine constants, Landé g-factors and isotope shifts of Xe LIII Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-08-02 Dhia Elhak Salhi, Pascal Quinet, Haikel Jelassi
Energy levels, weighted oscillator strengths and transition probabilities, lifetimes, hyperfine interaction constants, Landé gJ factors and isotope shifts are calculated for all levels of 1s2 and 1snl (n=2−7) configurations of He-like xenon ion (Xe LIII). Multiconfigurational Dirac–Hartree–Fock (MCDHF) method is adopted for calculating these spectroscopic data. Comparisons are made with similar data
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Nuclear properties for astrophysical and radioactive-ion-beam applications (II) Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-07-09 P. Möller, M.R. Mumpower, T. Kawano, W.D. Myers
We tabulate the ground-state odd-proton and odd-neutron spins and parities, proton and neutron pairing gaps, one- and two-neutron separation energies, quantities related to β-delayed one- and two-neutron emission probabilities, average energy and average number of emitted neutrons, β-decay energy release and half-life with respect to Gamow–Teller decay with a phenomenological treatment of first-forbidden
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Calculations of energies, transition rates, and lifetimes for the fluorine-like isoelectronic sequence with Z=31−35 Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-07-06 J.Q. Li, C.Y. Zhang, R. Si, K. Wang, C.Y. Chen
Employing two state-of-the-art methods, multiconfiguration Dirac–Hartree–Fock and second-order many-body perturbation theory, highly accurate calculations are performed for the lowest 200 fine-structure levels arising from the 2l7,2l63l′ and 2l64l′ configurations of the fluorine-like isoelectronic sequence with Z=31−35. Complete and consistent atomic data, including excitation energies, lifetimes,
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Nuclear chiral doublet bands data tables Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-06-25 B.W. Xiong, Y.Y. Wang
Since the prediction of nuclear chirality in 1997, tremendous progresses both theoretically and experimentally have been achieved. Experimentally, 59 chiral doublet bands in 47 chiral nuclei (including 8 nuclei with multiple chiral doublets) have been reported in A∼80,100,130, and 190 mass regions. The spins, parities, energies, ratios of the magnetic dipole transition strengths to the electric quadrupole
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Core polarization effects: Oscillator strengths, transition probabilities and radiative lifetimes of levels in Bi IV Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-06-02 C. Moreno-Díaz, A. Alonso-Medina
In this work a systematic analysis of Bi IV atomic properties is presented. Ab initio relativistic Hartree–Fock calculations in an intermediate coupling (IC) formalism and taking into account Core Polarization Effects (CPE) are used. We use for the IC calculations the standard method of least square fitting of experimental energy levels by means of computer codes from Cowan which was modified in order
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Radiative rates for E1, E2, M1, and M2 transitions in Ne-like Hf LXIII, Ta LXIV and Re LXVI Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-05-01 Kanti M. Aggarwal
Calculations for energy levels, radiative rates and lifetimes have been performed for three Ne-like ions, namely Hf LXIII, Ta LXIV and Re LXVI, for which the general-purpose relativistic atomic structure package (GRASP) has been adopted. Results are presented among the lowest 121 levels of these ions, which belong to the 2s22p6, 2s22p53ℓ, 2s2p63ℓ, 2s22p54ℓ, 2s2p64ℓ, and 2s22p55ℓ configurations, but
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Theoretical level energies and transition data for 4p64d5, 4p54d6 and 4p64d44f configurations of W33+ ion Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-05-01 R. Karpuškienė, R. Kisielius
The ab initio quasirelativistic approach developed specifically for the calculation of spectral parameters of highly charged ions was used to derive transition data for the Nb-like tungsten ion W33+. The configuration interaction method was applied to include electron correlation effects. The relativistic effects were taken into account in the Breit–Pauli approximation. The level energies, radiative
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Radiative rates for E1, E2, M1, and M2 transitions in Ne-like Cu XX, Zn XXI and Ga XXII Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-04-06 Kanti M. Aggarwal
Energy levels, radiative rates and lifetimes are reported for the lowest 139 levels of three Ne-like ions, namely Cu XX, Zn XXI and Ga XXII. These levels mostly belong to the 2s22p6, 2s22p53ℓ, 2s2p63ℓ, 2s22p54ℓ, 2s2p64ℓ, and 2s22p55ℓ configurations. For the calculations the general-purpose relativistic atomic structure package (GRASP) has been adopted. Comparisons are made with earlier available theoretical
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Giant dipole resonance parameters of ground-state photoabsorption: Experimental values with uncertainties Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-04-05 V.A. Plujko, O.M. Gorbachenko, R. Capote, P. Dimitriou
Updated values and corresponding uncertainties of Isovector Giant Dipole Resonance (GDR) parameters which are obtained by the least-squares fitting of theoretical photoabsorption cross sections to experimental data are presented. The theoretical photoabsorption cross sections are taken as a sum of the components corresponding to the excitation of the GDR and quasideuteron photodisintegration. The current
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The study of the core–valence and core–core correlation effects on the radiative properties along the magnesium isoelectronic sequence Atom. Data Nucl. Data Tables (IF 2.407) Pub Date : 2018-02-26 C. Iorga, V. Stancalie
We investigated the effect of core–valence and core–core correlations on the energy levels and transition probabilities along the Mg isoelectronic sequence from Si2+ to U80+. In order to attain a certain accuracy for the atomic structure we considered configurations obtained by electron promotions from the n=3 up to n=7 valence shells. Core–valence and core–core correlations are systematically included
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