Laser-spectroscopy measurements of 72–96Kr spins, moments and charge radii

Keim, M.; Arnold, E.; Borchers, W.; Georg, U.; Klein, Alexander; Neugart, R.; Vermeeren, L.; Silverans, Roger; Lievens, Peter

doi:10.1016/0375-9474(94)00786-m

Cited by 129 publications

(108 citation statements)

References 54 publications

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“…Data are taken from Ref. [43]. In the Ni isotopes, we can see that the lower values of the rms radii occur around the double magic nucleus N = Z = 28, and around the semimagic N = 50 in Kr isotopes.…”

Section: A Root Mean Square Radii and Density Distributionsmentioning

confidence: 93%

“…(16)]. We compare them to the available experimental information obtained from various methods including laser and muonic atoms spectroscopy [37][38][39][40][41][42][43]. We also compare our results with different theoretical calculations.…”

Section: A Root Mean Square Radii and Density Distributionsmentioning

confidence: 96%

“…[22] by performing a more systematic study of a larger set of exotic nuclei and calculating also neutron skin thicknesses. The calculated charge rms radii are compared with the laser or muonic atoms spectroscopy measurements of isotope shifts performed on Sn [37][38][39][40], Ni [41,42], and Kr [43] isotopes. The neutron skin thicknesses obtained in this paper are compared with the available experimental data extracted from the methods mentioned above for even-even Sn isotopes with masses from 112 to 124.…”

Section: Introductionmentioning

confidence: 99%

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Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

et al. 2007

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A study of the charge and matter densities and the corresponding rms radii for even-even isotopes of Ni, Kr, and Sn has been performed in the framework of the deformed self-consistent mean-field Skyrme HF+BCS method. The resulting charge radii and neutron skin thicknesses of these nuclei are compared with available experimental data, as well as with other theoretical predictions. The formation of a neutron skin, which manifests itself in an excess of neutrons at distances greater than the radius of the proton distribution, is analyzed in terms of various definitions. Formation of a proton skin is shown to be unlikely. The effects of deformation on the neutron skins in even-even deformed nuclei far from the stability line are discussed.

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Section: A Root Mean Square Radii and Density Distributionsmentioning

confidence: 93%

Section: A Root Mean Square Radii and Density Distributionsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

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Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

et al. 2007

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“…The sensitivity of this scheme is demonstrated in the inset of Fig. 2, where a resonance curve for 28 Ne with a half-life of 17 ms and a yield of about 45 ions per pulse from ISOLDE is shown. Spectra of longer-lived isotopes taken by direct ion counting were recorded in a fast repeated scanning mode, thus averaging over all systematic variations and statistical fluctuations of the beam intensity.…”

Section: A Experimental Setupmentioning

confidence: 99%

“…High sensitivity on short-lived isotopes was achieved thanks to nonoptical detection based on optical pumping and state-selective collisional ionization, which was complemented by an accurate determination of the beam kinetic energy. The new results provide information on the structural changes in the sequence of neon isotopes all across the neutron sd shell, ranging from the proton drip line nucleus and halo candidate 17 Ne up to the neutron-rich 28 Ne in the vicinity of the "island of inversion." Within this range the charge radius is smallest for 24 Ne with N = 14 corresponding to the closure of the neutron d 5/2 shell, while it increases toward both neutron shell closures, N = 8 and N = 20.…”

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confidence: 99%

Charge radii of neon isotopes across thesdneutron shell

et al. 2011

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We report on the changes in mean square charge radii of unstable neon nuclei relative to the stable 20 Ne, based on the measurement of optical isotope shifts. The studies were carried out using collinear laser spectroscopy on a fast beam of neutral neon atoms. High sensitivity on short-lived isotopes was achieved thanks to nonoptical detection based on optical pumping and state-selective collisional ionization, which was complemented by an accurate determination of the beam kinetic energy. The new results provide information on the structural changes in the sequence of neon isotopes all across the neutron sd shell, ranging from the proton drip line nucleus and halo candidate 17 Ne up to the neutron-rich 28 Ne in the vicinity of the "island of inversion." Within this range the charge radius is smallest for 24 Ne with N = 14 corresponding to the closure of the neutron d 5/2 shell, while it increases toward both neutron shell closures, N = 8 and N = 20. The general trend of the charge radii correlates well with the deformation effects which are known to be large for several neon isotopes. In the neutron-deficient isotopes, structural changes arise from the onset of proton-halo formation for 17 Ne, shell closure in 18 Ne, and clustering effects in 20,21 Ne. On the neutron-rich side the transition to the island of inversion plays an important role, with the radii in the upper part of the sd shell confirming the weakening of the N = 20 magic number. The results add new information to the radii systematics of light nuclei where data are scarce because of the small contribution of nuclear-size effects to the isotope shifts which are dominated by the finite-mass effect.

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⁸³Kr nuclear magnetic moment in terms of that of ³He

Makulski

2014

Magnetic Reson in Chemistry

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High resolution NMR spectroscopy was applied to precisely determine the (83)Kr nuclear magnetic dipole moment on the basis of new results available for nuclear magnetic shielding in krypton and helium-3 atoms. Small amounts of (3)He as the solutes and (83)Kr as the buffer gas were observed in (3)He and (83)Kr NMR spectra at the constant external field, B0 = 11.7578 T. In each case, the resonance frequencies (ν(He) and ν(Kr)) were linearly dependent on the density of gaseous solvent. The extrapolation of experimental points to the zero density of gaseous krypton allowed for the evaluation of both resonance frequencies free from intermolecular interactions. By combining these measurements with the recommended (83)Kr chemical shielding value, the nuclear magnetic moment could be determined with much better precision than ever before, μ((83)Kr) = -0.9707297(32)μN, with the improvement due to the greater accuracy of the spectral data.

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Laser-spectroscopy measurements of 72–96Kr spins, moments and charge radii

Cited by 129 publications

References 54 publications

Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

Charge radii of neon isotopes across thesdneutron shell

⁸³Kr nuclear magnetic moment in terms of that of ³He

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Laser-spectroscopy measurements of 72–96Kr spins, moments and charge radii

Cited by 129 publications

References 54 publications

Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

Charge radii of neon isotopes across thesdneutron shell

83Kr nuclear magnetic moment in terms of that of 3He

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Product

Resources

About

⁸³Kr nuclear magnetic moment in terms of that of ³He