Recent trends in the determination of nuclear masses

Lunney, D.; Pearson, J. M.; Thibault, C.

doi:10.1103/revmodphys.75.1021

Cited by 731 publications

(742 citation statements)

References 400 publications

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“…A key quantity allowing the comparison of theoretical models and measured values is the ground state binding energy, and hence the atomic mass. In the last decade, great progress both in the production and preparation of exotic nuclides [10] as well as in the improvement of mass-measurement techniques [11] was achieved. The mass measurements reported here were performed using the Penning trap mass spectrometer ISOLTRAP [12] at the on-line isotope separator ISOLDE [13] located at CERN in Geneva, Switzerland.…”

Section: Introductionmentioning

confidence: 99%

Mass measurements on neutron-deficient Sr and neutron-rich Sn isotopes with the ISOLTRAP mass spectrometer

et al. 2005

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The atomic masses of 76,77,80,81 Sr and 129,130,131,132 Sn were measured by means of the Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN. 76 Sr is now the heaviest N = Z nucleus for which the mass is measured to a precision better than 35 keV. For the tin isotopes in the close vicinity of the doubly magic nucleus 132 Sn, mass uncertainties below 20 keV were achieved. An atomic mass evaluation was carried out taking other experimental mass values into account by performing a least-squares adjustment. Some discrepancies between older experimental values and the ones reported here emerged and were resolved. The results of the new adjustment and their impact will be presented.

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Section: Introductionmentioning

confidence: 99%

Mass measurements on neutron-deficient Sr and neutron-rich Sn isotopes with the ISOLTRAP mass spectrometer

et al. 2005

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“…It has to be noted, however, that these results still do not reach the accuracy of the best phenomenological mass tables (recent trends in the determination of nuclear masses have been reviewed in Ref. [73]). Modern Skyrme-based microscopic mass formulas, with a total of ≈ 20 empirical parameters, fit the measured masses of more than two thousand nuclei with an rms error of less than 700 keV.…”

Section: Summary Conclusion and Further Commentsmentioning

confidence: 99%

Relativistic nuclear energy density functional constrained by low-energy QCD

et al. 2006

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A relativistic nuclear energy density functional is developed, guided by two important features that establish connections with chiral dynamics and the symmetry breaking pattern of low-energy QCD: a) strong scalar and vector fields related to inmedium changes of QCD vacuum condensates; b) the long-and intermediate-range interactions generated by one-and two-pion exchange, derived from in-medium chiral perturbation theory, with explicit inclusion of ∆(1232) excitations. Applications are presented for binding energies, radii of proton and neutron distributions and other observables over a wide range of spherical and deformed nuclei from 16 O to 210 P o. Isotopic chains of Sn and P b nuclei are studied as test cases for the isospin dependence of the underlying interactions. The results are at the same level of quantitative comparison with data as the best phenomenological relativistic mean-field models.

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“…4 of that work), where also the hope was expressed that these arches can remedy some open theoretical problem in the reproduction of experimental masses by theoretical models. In fact, it is known that when a functional is designed with the goal of reproducing accurately the binding energies, often double-magic nuclei turn out to be underbound (see, e.g., the review paper [57]). It should be added, though, that this deficiency is more often ascribed either (i) to the fact that a large-scale fit of any functional is dominated by open-shell nuclei, and pairing gives a strong bias to the results of the fit so that the errors are larger when pairing is absent, or (ii) to the fact that correlation energies are systematically different in open-shell and closed-shell nuclei.…”

Section: Massesmentioning

confidence: 99%

Tensor interaction in mean-field and density functional theory approaches to nuclear structure

Sagawa

Colò

2014

Progress in Particle and Nuclear Physics

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The importance of the tensor force for nuclear structure has been recognized long ago. Recently, the interest for this topic has been revived by the study of the evolution of nuclear properties far from the stability line. However, in the context of the effective theories that describe medium-heavy nuclei, the role of the tensor force is still debated. This review focuses on ground-state properties like masses and deformation, on single-particle states, and on excited vibrational and rotational modes. The goal is to assess which properties, if any, can bring clear signatures of the tensor force within the mean-field or density functional theory framework. It will be concluded that, while evidences for a clear neutron-proton tensor force exist despite quantitative uncertainties, the role of the tensor force among equal particles is less well established.

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Recent trends in the determination of nuclear masses

Cited by 731 publications

References 400 publications

Mass measurements on neutron-deficient Sr and neutron-rich Sn isotopes with the ISOLTRAP mass spectrometer

Mass measurements on neutron-deficient Sr and neutron-rich Sn isotopes with the ISOLTRAP mass spectrometer

Relativistic nuclear energy density functional constrained by low-energy QCD

Tensor interaction in mean-field and density functional theory approaches to nuclear structure

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