Hyperfine structure of hydrogenlike thallium isotopes

Beiersdörfer, P.; Utter, S. B.; Wong, K. L.; López‐Urrutia, J. R. Crespo; Britten, J A; Chen, Hui; Harris, C. L.; Thoe, R. S.; Thorn, D. B.; Träbert, E.; Gustavsson, Mattias; Forssén, Christian; Pendrill, Ann-Marie

doi:10.1103/physreva.64.032506

Cited by 119 publications

(86 citation statements)

References 27 publications

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“…High-precision measurements of the ground-state hyperfine structure of heavy highly charged ions have been performed in Refs. [3,4,5,6,7]. Extension of these experiments to Li-like ions presently being prepared [8] will provide tests of quantum electrodynamics (QED) in strong electric and magnetic fields on level of a few percent in specific difference of the hyperfine splitting values of H-and Li-like ions [9].…”

Section: Introductionmentioning

confidence: 99%

Ground-state hyperfine structure of H-, Li-, and B-like ions in the intermediate-Zregion

et al. 2008

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The hyperfine splitting of the ground state of H-, Li-, and B-like ions is investigated in details within the range of nuclear numbers Z = 7 − 28. The rigorous QED approach together with the large-scale configuration-interaction Dirac-Fock-Sturm method are employed for the evaluation of the interelectronicinteraction contributions of first and higher orders in 1/Z. The screened QED corrections are evaluated to all orders in αZ utilizing an effective potential approach. The influence of nuclear magnetization distribution is taken into account within the single-particle nuclear model. The specific differences between the hyperfinestructure level shifts of H-and Li-like ions, where the uncertainties associated with the nuclear structure corrections are significantly reduced, are also calculated.

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Section: Introductionmentioning

confidence: 99%

Ground-state hyperfine structure of H-, Li-, and B-like ions in the intermediate-Zregion

et al. 2008

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“…Note, this is an additional distinctive feature of this particular kind of QED test. In contrast, all other atomic-structure experiments at high Z such as 1s Lamb shift [10][11][12][13], bound state g-factor [14], hyperfine splitting in hydrogen-like ions [15][16][17][18] or 2s-2p transitions in heavy Li-like systems [19][20][21] encounter the issue of large nuclear effects which may mask the physics at strong fields. typically achieved at the ESR is determined by the uncertainty of the absolute velocity.…”

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confidence: 99%

Electron-Electron Interaction in Strong Electromagnetic Fields: The Two-Electron Contribution to the Ground-State Energy in He-like Uranium

et al. 2004

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Radiative recombination transitions into the ground state of cooled bare and hydrogen-like uranium ions were measured at the storage ring ESR. By comparing the corresponding x-ray centroid energies, this technique allows for a direct measurement of the electron-electron contribution to the ionization potential in the heaviest He-like ions. For the two-electron contribution to the ionization potential of He-like uranium we obtain a value of 2248 ± 9 eV. This represents the most accurate determination of two-electron effects in the domain of high-Z He-like ions and the accuracy reaches already the size of the specific two-electron radiative QED corrections.

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“…For example, the calculated transition wavelengths for 205 Tl are 3786Å [40], 3802Å [41] and 3849Å [42]. These vary by about 60Å amongst each other and differ between −36 and +27Å from the measured value of 3821.84 ± 0.34Å [39]. The differences may be caused by inaccuracies in various fundamental properties of these ions, including finite charge effects, the value of the nuclear magnetic moment, the self energy, and vacuum polarization contributions.…”

Section: Atomic-nuclear Interactionsmentioning

confidence: 99%

“…Most recently we used the high-resolution transmission grating spectrometer [36] to measure the 1s hyperfine transitions of 203 Tl and 205 Tl [39], which are the most accurate measurements to date.…”

Section: Atomic-nuclear Interactionsmentioning

confidence: 99%

Highly Charged Ion Research at the Livermore Electron Beam Ion Traps

Beiersdörfer

2005

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Spectroscopy performed with the three Livermore electron beam ion traps is reviewed, which is continuing and complementing the innumerable contributions to atomic physics provided over the years by heavy-ion accelerators. Numerous spectrometers were developed that cover the spectral bands from the visible to the hard x ray region. These enabled exhaustive line surveys useful for x-ray astrophysics and for systematic studies along iso-electronic sequences, such as the 4s-4p, 3s-3p, and 2s-2p transitions in ions of the Cu-I, Na-I, and Li-I sequences useful for studying QED and correlation effects as well as for precise determinations of atomic-nuclear interactions. They also enabled measurements of radiative transition probabilities of very long-lived (milli-and microseconds) and very short-live (femtosecond) levels. Because line excitation processes can be controlled by choice of the electron beam energy, the observed line intensities are used to infer cross sections for electron-impact excitation, dielectronic recombination, resonance excitation, and innershell ionization. These capabilities have recently been expanded to simulate x-ray emission from comets by charge exchange. Specific contributions to basic atomic physics, nuclear physics, and high-temperature diagnostics are illustrated.

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Hyperfine structure of hydrogenlike thallium isotopes

Cited by 119 publications

References 27 publications

Ground-state hyperfine structure of H-, Li-, and B-like ions in the intermediate-Zregion

Ground-state hyperfine structure of H-, Li-, and B-like ions in the intermediate-Zregion

Electron-Electron Interaction in Strong Electromagnetic Fields: The Two-Electron Contribution to the Ground-State Energy in He-like Uranium

Highly Charged Ion Research at the Livermore Electron Beam Ion Traps

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