Neutron-skin thickness of <sup>208</sup>Pb from the energy of the anti-analogue giant dipole resonance

Krasznahorkay, A.; Paar, Nils; Vretenar, Dario; Harakeh, Mohsen

doi:10.1088/0031-8949/2013/t154/014018

Cited by 13 publications

(16 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A central value of 0.33 fm is particularly intriguing since it is around 0.13 fm higher than central values obtained in other experiments (see Table 1 in Ref. [140]). The analysis performed in Ref.…”

Section: Deformationscontrasting

confidence: 48%

Global performance of covariant energy density functionals: Ground state observables of even-even nuclei and the estimate of theoretical uncertainties

et al. 2014

View full text Add to dashboard Cite

Covariant density functional theory (CDFT) is a modern theoretical tool for the description of nuclear structure phenomena. The current investigation aims at the global assessment of the accuracy of the description of the ground state properties of even-even nuclei. We also estimate theoretical uncertainties defined here as the spreads of predictions within four covariant energy density functionals (CEDF) in known regions of the nuclear chart and their propagation towards the neutron drip line. Large-scale axial relativistic Hartree-Bogoliubov (RHB) calculations are performed for all Z ≤ 104 even-even nuclei between the two-proton and two-neutron drip lines with four modern covariant energy density functionals such as NL3*, DD-ME2, DD-MEδ and DD-PC1. The physical observables of interest include the binding energies, two-particle separation energies, charge quadrupole deformations, isovector deformations, charge radii, neutron skin thicknesses and the positions of the two-proton and two-neutron drip lines. The predictions for the two-neutron drip line are also compared in a systematic way with the ones obtained in non-relativistic models. As an example, the data set of the calculated properties of even-even nuclei obtained with DD-PC1 CEDF is provided as Supplemental Material with this article at [1].

show abstract

Section: Deformationscontrasting

confidence: 48%

Global performance of covariant energy density functionals: Ground state observables of even-even nuclei and the estimate of theoretical uncertainties

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Recently, in a measurement of the coherent π 0 photoproduction from 208 Pb at Mainz [11], the shape of the neutron distribution has been found to be 20% more diffuse than the charge distribution and the neutron skin thickness is R skin = 0.15 ± 0.03 (stat) +0.01 −0.03 (syst) fm. This value is compatible with previous independent measurements, i.e., proton elastic scattering [5,12], x-ray cascade of antiprotonic atoms [3,4], anti-analog giant dipole resonances [13][14][15], giant quadrupole resonances [16], pigmy dipole resonance [17][18][19][20], electric dipole polarizability [21] or pionic probes [22].…”

Section: +016supporting

confidence: 92%

Neutron density distribution and neutron skin thickness ofPb208

et al. 2014

View full text Add to dashboard Cite

We present and discuss numerical predictions for the neutron density distribution of 208 Pb using various non-relativistic and relativistic mean-field models for the nuclear structure. Our results are compared with the very recent pion photoproduction data from Mainz. The parity-violating asymmetry parameter for elastic electron scattering at the kinematics of the PREX experiment at JLab and the neutron skin thickness are compared with the available data. We consider also the dependence between the neutron skin and the parameters of the expansion of the symmetry energy.

show abstract

“…The present calculation employing the SkM* functional reproduces well these experimental data. The ( 13 C, 13 N) reaction has been employed to locate the IVGQR in 60 Co, and it is found at E x = 20 ± 2 MeV [67]. The calculation is in remarkable agreement with the experiment, as shown in Fig.…”

Section: Spherical Nucleisupporting

confidence: 63%

“…Since the IS component is absent in the T z = ±1 channels, a detailed investigation of the charge-exchange GRs would give an additional constraint on the symmetry energy. The anti-analog GDR is an example [11][12][13][14][15][16]. Furthermore, to investigate the isospin structure of the excitation modes, such as the pygmy dipole resonance, a comparative study in the T z = 0 and −1 channels has been carried out in Refs.…”

Section: Introductionmentioning

confidence: 99%

Isovector giant monopole and quadrupole resonances in a Skyrme energy density functional approach with axial symmetry

Yoshida

2021

Phys. Rev. C

View full text Add to dashboard Cite

Background: Giant resonance (GR) is a typical collective mode of vibration. The deformation splitting of the isovector (IV) giant dipole resonance is well established. However, the splitting of GRs with other multipolarities is not well understood. Purpose: I explore the IV monopole and quadrupole excitations and attempt to obtain the generic features of IV giant resonances in deformed nuclei by investigating the neutral and charge-exchange channels simultaneously. Method: I employ a nuclear energy-density functional (EDF) method: the Skyrme-Kohn-Sham-Bogoliubov and the quasiparticle random-phase approximation are used to describe the ground state and the transition to excited states. Results: I find the concentration of the monopole strengths in the energy region of the isobaric analog or Gamow-Teller resonance irrespective of nuclear deformation, and the appearance of a high-energy giant resonance composed of the particle-hole configurations of 2 hω 0 excitation. Splitting of the distribution of the strength occurs in the giant monopole and quadrupole resonances due to deformation. The lower K states of quadrupole resonances appear lower in energy and possess the enhanced strengths in the prolate configuration, and vice versa in the oblate configuration, while the energy ordering depending on K is not clear for the J = 1 and J = 2 spin-quadrupole resonances. Conclusions: The deformation splitting occurs generally in the giant monopole and quadrupole resonances. The K dependence of the quadrupole transition strengths is largely understood by the anisotropy of density distribution.

show abstract

Neutron-skin thickness of ²⁰⁸Pb from the energy of the anti-analogue giant dipole resonance

Cited by 13 publications

References 37 publications

Global performance of covariant energy density functionals: Ground state observables of even-even nuclei and the estimate of theoretical uncertainties

Global performance of covariant energy density functionals: Ground state observables of even-even nuclei and the estimate of theoretical uncertainties

Neutron density distribution and neutron skin thickness ofPb208

Isovector giant monopole and quadrupole resonances in a Skyrme energy density functional approach with axial symmetry

Contact Info

Product

Resources

About

Neutron-skin thickness of 208Pb from the energy of the anti-analogue giant dipole resonance

Cited by 13 publications

References 37 publications

Global performance of covariant energy density functionals: Ground state observables of even-even nuclei and the estimate of theoretical uncertainties

Global performance of covariant energy density functionals: Ground state observables of even-even nuclei and the estimate of theoretical uncertainties

Neutron density distribution and neutron skin thickness ofPb208

Isovector giant monopole and quadrupole resonances in a Skyrme energy density functional approach with axial symmetry

Contact Info

Product

Resources

About

Neutron-skin thickness of ²⁰⁸Pb from the energy of the anti-analogue giant dipole resonance