Pub Date : 2026-01-09DOI: 10.1016/j.adt.2025.101785
M. Klempka , J. Ruczkowski , M. Elantkowska
The values of the radiative parameters for atomic lutetium (Lu I) were determined using a semi-empirical method. The eigenvector amplitudes determined in our previously published research were adopted. In most cases, the calculated values of the oscillator strengths and radiative lifetimes agree well with the experimental data. Predictions of the values of the radiative parameters are also provided.
{"title":"Semi-empirical determination of radiative parameters for atomic lutetium","authors":"M. Klempka , J. Ruczkowski , M. Elantkowska","doi":"10.1016/j.adt.2025.101785","DOIUrl":"10.1016/j.adt.2025.101785","url":null,"abstract":"<div><div>The values of the radiative parameters for atomic lutetium (Lu I) were determined using a semi-empirical method. The eigenvector amplitudes determined in our previously published research were adopted. In most cases, the calculated values of the oscillator strengths and radiative lifetimes agree well with the experimental data. Predictions of the values of the radiative parameters are also provided.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"168 ","pages":"Article 101785"},"PeriodicalIF":4.1,"publicationDate":"2026-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-08DOI: 10.1016/j.adt.2025.101783
P. Syty , M.P. Piłat , J.E. Sienkiewicz
We present a calculation of the low-energy phase shift and scattering length for the strontium atom, using the Dirac-Coulomb Hamiltonian augmented with a model polarization potential. The scattering length is extracted from the asymptotic behavior of the wave function in the zero-energy limit. To evaluate the reliability of our results, we compare them with existing experimental data and previous theoretical predictions. Bound-state properties are obtained using a multiconfigurational approach with the GRASP2018 package, while continuum states are computed with a modified version of the GRASP code, known as GRASPC, recently published in Computer Physics Communications.
{"title":"Low-energy phase shifts and scattering length of strontium from Dirac-Coulomb and polarization potential modeling","authors":"P. Syty , M.P. Piłat , J.E. Sienkiewicz","doi":"10.1016/j.adt.2025.101783","DOIUrl":"10.1016/j.adt.2025.101783","url":null,"abstract":"<div><div>We present a calculation of the low-energy phase shift and scattering length for the strontium atom, using the Dirac-Coulomb Hamiltonian augmented with a model polarization potential. The scattering length is extracted from the asymptotic behavior of the wave function in the zero-energy limit. To evaluate the reliability of our results, we compare them with existing experimental data and previous theoretical predictions. Bound-state properties are obtained using a multiconfigurational approach with the GRASP2018 package, while continuum states are computed with a modified version of the GRASP code, known as GRASPC, recently published in Computer Physics Communications.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"168 ","pages":"Article 101783"},"PeriodicalIF":4.1,"publicationDate":"2026-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-06DOI: 10.1016/j.adt.2025.101784
D.M. Nalecz
This study presents new tables for Stevens’ multiplicative factors and for ions with a configuration. The tables, denoted as Table 4 and Table 5, provide values for these factors that were calculated for ions in the basis, which distinguishes them from typically used tables expressed in the basis and commonly truncated for ions. These values are crucial for describing the magnetic and electric properties of compounds containing lanthanide ions. To the best of our knowledge, these values have not been explicitly tabulated in any previous publication. The tables may help in the analysis of experimental data and the modeling of magnetic and electric properties for ions with a configuration.
{"title":"Stevens multiplicative factors α, β, γ for 3dn and 4fn ions in spin–orbital space","authors":"D.M. Nalecz","doi":"10.1016/j.adt.2025.101784","DOIUrl":"10.1016/j.adt.2025.101784","url":null,"abstract":"<div><div>This study presents new tables for Stevens’ multiplicative factors <span><math><mrow><mo>〈</mo><mi>L</mi><mo>‖</mo><mi>β</mi><mo>‖</mo><mi>L</mi><mo>〉</mo></mrow></math></span> and <span><math><mrow><mo>〈</mo><mi>L</mi><mo>‖</mo><mi>γ</mi><mo>‖</mo><mi>L</mi><mo>〉</mo></mrow></math></span> for ions with a <span><math><mrow><mn>4</mn><msup><mrow><mi>f</mi></mrow><mrow><mi>n</mi></mrow></msup></mrow></math></span> configuration. The tables, denoted as Table 4 and Table 5, provide values for these factors that were calculated for <span><math><mrow><mn>4</mn><msup><mrow><mi>f</mi></mrow><mrow><mi>n</mi></mrow></msup></mrow></math></span> ions in the <span><math><mrow><mo>|</mo><mi>L</mi><mo>,</mo><msub><mrow><mi>L</mi></mrow><mrow><mi>z</mi></mrow></msub><mo>,</mo><mi>S</mi><mo>,</mo><msub><mrow><mi>S</mi></mrow><mrow><mi>z</mi></mrow></msub><mo>〉</mo></mrow></math></span> basis, which distinguishes them from typically used tables expressed in the <span><math><mrow><mo>|</mo><mi>J</mi><mo>,</mo><msub><mrow><mi>J</mi></mrow><mrow><mi>z</mi></mrow></msub><mo>〉</mo></mrow></math></span> basis and commonly truncated for <span><math><mrow><mn>4</mn><msup><mrow><mi>f</mi></mrow><mrow><mi>n</mi></mrow></msup></mrow></math></span> ions. These values are crucial for describing the magnetic and electric properties of compounds containing lanthanide ions. To the best of our knowledge, these values have not been explicitly tabulated in any previous publication. The tables may help in the analysis of experimental data and the modeling of magnetic and electric properties for ions with a <span><math><mrow><mn>4</mn><msup><mrow><mi>f</mi></mrow><mrow><mi>n</mi></mrow></msup></mrow></math></span> configuration.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"168 ","pages":"Article 101784"},"PeriodicalIF":4.1,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001785","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-31DOI: 10.1016/j.adt.2025.101771
L. Windholz , S. Kröger
With the use of wave number calibrated Fourier transform spectra spanning from the IR to the UV wavelength range, the values of energy levels of the atomic niobium (Nb I) have been revised. Due to recently published work (JQSRT 332 (2024) 109285) now the magnetic dipole hyperfine structure constants are available for all known Nb I levels. This allows to find the center of gravity wave numbers of the observed spectral lines with high accuracy. Revised level energies of all 399 known fine structure levels are determined using a global fit of altogether 1756 spectral lines, based on a least squares procedure. A comparison between our new results and available literature values is given and discussed.
{"title":"Revised level energies of Nb I","authors":"L. Windholz , S. Kröger","doi":"10.1016/j.adt.2025.101771","DOIUrl":"10.1016/j.adt.2025.101771","url":null,"abstract":"<div><div>With the use of wave number calibrated Fourier transform spectra spanning from the IR to the UV wavelength range, the values of energy levels of the atomic niobium (Nb I) have been revised. Due to recently published work (JQSRT 332 (2024) 109285) now the magnetic dipole hyperfine structure constants are available for all known Nb I levels. This allows to find the center of gravity wave numbers of the observed spectral lines with high accuracy. Revised level energies of all 399 known fine structure levels are determined using a global fit of altogether 1756 spectral lines, based on a least squares procedure. A comparison between our new results and available literature values is given and discussed.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"168 ","pages":"Article 101771"},"PeriodicalIF":4.1,"publicationDate":"2025-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-15DOI: 10.1016/j.adt.2025.101782
M.R. Mumpower , T. Kawano , O. Korobkin , G.W. Misch , T.M. Sprouse
{"title":"Erratum to “Nuclear β−-decay with statistical de-excitation” [At. Data Nucl. Data Tables 165 (2025) 1–81]","authors":"M.R. Mumpower , T. Kawano , O. Korobkin , G.W. Misch , T.M. Sprouse","doi":"10.1016/j.adt.2025.101782","DOIUrl":"10.1016/j.adt.2025.101782","url":null,"abstract":"","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"168 ","pages":"Article 101782"},"PeriodicalIF":4.1,"publicationDate":"2025-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper presents an overview of the latest results of measuring differential and integrated γ-ray emission cross sections in reactions induced by 14.1 MeV neutrons for 16 elements (Li, B, N, F, Na, Mg, S, Cl, K, V, Mn, Co, Ni, Cu, Zn, Sn) carried out within the framework of the TANGRA (TAgged Neutrons and Gamma RAys) project. The experiments were performed using high-resolution γ-ray detectors based on LaBr3(Ce) crystals and high-purity germanium (HPGe) detectors. A distinctive feature of this work was the use of the tagged neutron method to determine the number of neutrons hitting the sample and background rejection by time of flight. Differential cross sections were obtained in the angular range of 12–89°, with subsequent expansion into Legendre polynomials of even degree to obtain the integrated cross sections.
{"title":"Measurement of the cross sections of prompt γ-ray production in the 14.1 MeV neutron induced reactions for 16 elements with atomic numbers between 3 and 50","authors":"P.S. Prusachenko , N.A. Fedorov , D.N. Grozdanov , Yu.N. Kopatch , P.I. Kharlamov , C. Hramco , V.R. Skoy , T.Yu. Tretyakova , А.V. Andreev , P.G. Filonchik , I.N. Ruskov , TANGRA collaboration","doi":"10.1016/j.adt.2025.101781","DOIUrl":"10.1016/j.adt.2025.101781","url":null,"abstract":"<div><div>This paper presents an overview of the latest results of measuring differential and integrated γ-ray emission cross sections in reactions induced by 14.1 MeV neutrons for 16 elements (Li, B, N, F, Na, Mg, S, Cl, K, V, Mn, Co, Ni, Cu, Zn, Sn) carried out within the framework of the TANGRA (TAgged Neutrons and Gamma RAys) project. The experiments were performed using high-resolution γ-ray detectors based on LaBr<sub>3</sub>(Ce) crystals and high-purity germanium (HPGe) detectors. A distinctive feature of this work was the use of the tagged neutron method to determine the number of neutrons hitting the sample and background rejection by time of flight. Differential cross sections were obtained in the angular range of 12–89°, with subsequent expansion into Legendre polynomials of even degree to obtain the integrated cross sections.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"168 ","pages":"Article 101781"},"PeriodicalIF":4.1,"publicationDate":"2025-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01DOI: 10.1016/j.adt.2025.101770
C. Chen (陈晨) , Y.F. Niu (牛一斐) , R. Xu (续瑞瑞) , Y. Tian (田源)
Photoabsorption cross sections for 235 stable nuclei, ranging from 40Ca to 209Bi, were investigated by the quasiparticle finite amplitude method (QFAM) based on the axially deformed relativistic Hartree–Bogoliubov (RHB) approach using relativistic point-coupling interaction DD-PC1, with extensions to odd-A nuclei. The microscopic description of odd-A nuclei makes it possible to capture abrupt changes in the photoabsorption cross sections due to the shape transitions between odd-A nuclei and their even–even neighbors. GDR parameters based on the standard Lorentzian (SLO) model were extracted from QFAM results and compared with those from experimental data recommended by IAEA. Good agreement was achieved for giant dipole resonance (GDR) peak energies, while resonance widths were underestimated and hence peak cross sections were overestimated due to the lack of higher-order many-body correlations. These discrepancies were much improved in deformed nuclei. The effects of deformation on photoabsorption cross sections were examined systematically. The comparison of photoabsorption cross sections among QFAM results and discrepant experimental data revealed the potential of QFAM calculations in the evaluation of photonuclear data.
{"title":"Systematic photoabsorption cross sections studied within the axially deformed relativistic quasiparticle finite amplitude framework","authors":"C. Chen (陈晨) , Y.F. Niu (牛一斐) , R. Xu (续瑞瑞) , Y. Tian (田源)","doi":"10.1016/j.adt.2025.101770","DOIUrl":"10.1016/j.adt.2025.101770","url":null,"abstract":"<div><div>Photoabsorption cross sections for 235 stable nuclei, ranging from <sup>40</sup>Ca to <sup>209</sup>Bi, were investigated by the quasiparticle finite amplitude method (QFAM) based on the axially deformed relativistic Hartree–Bogoliubov (RHB) approach using relativistic point-coupling interaction DD-PC1, with extensions to odd-A nuclei. The microscopic description of odd-A nuclei makes it possible to capture abrupt changes in the photoabsorption cross sections due to the shape transitions between odd-A nuclei and their even–even neighbors. GDR parameters based on the standard Lorentzian (SLO) model were extracted from QFAM results and compared with those from experimental data recommended by IAEA. Good agreement was achieved for giant dipole resonance (GDR) peak energies, while resonance widths were underestimated and hence peak cross sections were overestimated due to the lack of higher-order many-body correlations. These discrepancies were much improved in deformed nuclei. The effects of deformation on photoabsorption cross sections were examined systematically. The comparison of photoabsorption cross sections among QFAM results and discrepant experimental data revealed the potential of QFAM calculations in the evaluation of photonuclear data.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"168 ","pages":"Article 101770"},"PeriodicalIF":4.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146001780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-11-01DOI: 10.1016/j.adt.2025.101769
G.K. Vong, V.A. Dzuba, V.V. Flambaum
We calculate the energy levels and successive ionisation potentials (IPs) of ions of the three heaviest known Group 16 and 17 elements using a theoretical approach that combines the linearised coupled-cluster method, configuration interaction, and perturbation theory. Our calculations address critical gaps in the available data on the electronic structure of the superheavy elements livermorium (Lv) and tennessine (Ts), as well as their lighter homologues polonium (Po) and astatine (At). To assess the accuracy of our methods, we perform analogous calculations for the lighter homologues tellurium (Te) and iodine (I), for which both experimental and reliable theoretical data are available for comparison.
{"title":"Ionisation potentials and energy levels of ions of heavy and superheavy elements Te, I, Po, At, Lv and Ts","authors":"G.K. Vong, V.A. Dzuba, V.V. Flambaum","doi":"10.1016/j.adt.2025.101769","DOIUrl":"10.1016/j.adt.2025.101769","url":null,"abstract":"<div><div>We calculate the energy levels and successive ionisation potentials (IPs) of ions of the three heaviest known Group 16 and 17 elements using a theoretical approach that combines the linearised coupled-cluster method, configuration interaction, and perturbation theory. Our calculations address critical gaps in the available data on the electronic structure of the superheavy elements livermorium (Lv) and tennessine (Ts), as well as their lighter homologues polonium (Po) and astatine (At). To assess the accuracy of our methods, we perform analogous calculations for the lighter homologues tellurium (Te) and iodine (I), for which both experimental and reliable theoretical data are available for comparison.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"167 ","pages":"Article 101769"},"PeriodicalIF":4.1,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145665714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-30DOI: 10.1016/j.adt.2025.101767
M. Thoennessen, J. Chen
Currently, 1917 nuclear isomers with half-lives longer than 100 ns have been discovered in 1310 different nuclides and 103 different elements. While the physical properties of isomers have been compiled before, this is the first compilation of the isomer discoveries. For each isomer the reference, year, laboratory and country are documented.
{"title":"Discovery of nuclear isomers","authors":"M. Thoennessen, J. Chen","doi":"10.1016/j.adt.2025.101767","DOIUrl":"10.1016/j.adt.2025.101767","url":null,"abstract":"<div><div>Currently, 1917 nuclear isomers with half-lives longer than 100 ns have been discovered in 1310 different nuclides and 103 different elements. While the physical properties of isomers have been compiled before, this is the first compilation of the isomer discoveries. For each isomer the reference, year, laboratory and country are documented.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"167 ","pages":"Article 101767"},"PeriodicalIF":4.1,"publicationDate":"2025-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145665712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-10-24DOI: 10.1016/j.adt.2025.101766
Jian-Jie Wan, Qin Ma, Bin Bai, Jiao Li
Multiconfiguration Dirac–Hartree–Fock (MCDHF) and relativistic configuration interaction (RCI) methods have been used to calculate the energies of levels for the boron isoelectronic sequence with . It is found that the fine-structure splitting can be corrected by adding the frequency-dependent part of the Breit correction, which can result in a significant improvement of up to about 0.2% especially for high- B-like ions. We suggest that the fine-structure splittings in the boron isoelectronic sequence could be used to accurately test current theoretical methods to calculate the corrections of Breit and quantum electrodynamic (QED) effects. As far as the QED effects are concerned, the self-energy correction dominates for the low- and mid- range (), but then decreases to change sign for and meanwhile after the vacuum polarization is the leading term. It is also found that the frequency-dependent part of Breit correction strongly cancel out the SE and the total QED effects for and 60, respectively. This allows us to accurately test VP and Breit correlation for these ions. The uncertainties of the frequency-independent Breit correction and Coulomb correlation are expected to be at least 2 orders of magnitude smaller than the QED and frequency-dependent part of Breit corrections for intermediate- and high- B-like ions. Finally, the present M1 and E2 transition probabilities between the fine-structure levels are calculated and they are in good agreement with other theoretical and experimental results, especially for the mid- and high- ions.
{"title":"Effects of the Breit and QED corrections on the splittings between the fine-structure 1s22s22p2P1/2,3/2 levels for the boron isoelectronic sequence","authors":"Jian-Jie Wan, Qin Ma, Bin Bai, Jiao Li","doi":"10.1016/j.adt.2025.101766","DOIUrl":"10.1016/j.adt.2025.101766","url":null,"abstract":"<div><div>Multiconfiguration Dirac–Hartree–Fock (MCDHF) and relativistic configuration interaction (RCI) methods have been used to calculate the energies of <span><math><mrow><mn>1</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup><mn>2</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup><mn>2</mn><mi>p</mi><msup><mrow><mspace></mspace></mrow><mrow><mn>2</mn></mrow></msup><msub><mrow><mi>P</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn><mo>,</mo><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></math></span> levels for the boron isoelectronic sequence with <span><math><mrow><mi>Z</mi><mo>=</mo><mn>5</mn><mo>−</mo><mn>92</mn></mrow></math></span>. It is found that the fine-structure splitting can be corrected by adding the frequency-dependent part of the Breit correction, which can result in a significant improvement of up to about 0.2% especially for high-<span><math><mi>Z</mi></math></span> B-like ions. We suggest that the fine-structure <span><math><mrow><mn>1</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup><mn>2</mn><msup><mrow><mi>s</mi></mrow><mrow><mn>2</mn></mrow></msup><mn>2</mn><mi>p</mi><msup><mrow><mspace></mspace></mrow><mrow><mn>2</mn></mrow></msup><msub><mrow><mi>P</mi></mrow><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub><msup><mrow><mo>−</mo></mrow><mrow><mn>2</mn></mrow></msup><msub><mrow><mi>P</mi></mrow><mrow><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></math></span> splittings in the boron isoelectronic sequence could be used to accurately test current theoretical methods to calculate the corrections of Breit and quantum electrodynamic (QED) effects. As far as the QED effects are concerned, the self-energy correction dominates for the low- and mid-<span><math><mi>Z</mi></math></span> range (<span><math><mrow><mi>Z</mi><mo>=</mo><mn>5</mn><mo>−</mo><mn>79</mn></mrow></math></span>), but then decreases to change sign for <span><math><mrow><mi>Z</mi><mo>=</mo><mn>87</mn></mrow></math></span> and meanwhile after <span><math><mrow><mi>Z</mi><mo>=</mo><mn>80</mn></mrow></math></span> the vacuum polarization is the leading term. It is also found that the frequency-dependent part of Breit correction strongly cancel out the SE and the total QED effects for <span><math><mrow><mi>Z</mi><mo>=</mo><mn>56</mn></mrow></math></span> and 60, respectively. This allows us to accurately test VP and Breit correlation for these ions. The uncertainties of the frequency-independent Breit correction and Coulomb correlation are expected to be at least 2 orders of magnitude smaller than the QED and frequency-dependent part of Breit corrections for intermediate- and high-<span><math><mi>Z</mi></math></span> B-like ions. Finally, the present M1 and E2 transition probabilities between the fine-structure levels are calculated and they are in good agreement with other theoretical and experimental results, especially for the mid- and high-<span><math><mi>Z</mi></math></span> ions.</div></div>","PeriodicalId":55580,"journal":{"name":"Atomic Data and Nuclear Data Tables","volume":"167 ","pages":"Article 101766"},"PeriodicalIF":4.1,"publicationDate":"2025-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145665715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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