Excitation of Isovector Spin-Dipole Resonances and Neutron Skin of Nuclei

Krasznahorkay, A.; Fujiwara, M̄.; Aarle, P. van; Akimune, H.; Daito, I.; Fujimura, H.; Fujita, Y.; Harakeh, Mohsen; Inomata, T.; Jänecke, J.; Nakayama, S.; Tamii, A.; Tanaka, M.; Toyokawa, H.; Uijen, W.A.T.; Yosoi, M.

doi:10.1103/physrevlett.82.3216

Cited by 201 publications

(233 citation statements)

References 19 publications

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“…6. Results obtained with the FKVW interaction are compared with data [62] for the Sn isotopes, and with the empirical value of r n − r p in 208 P b (0.20 ± 0.04 fm from proton scattering data [63], and 0.19 ± 0.09 fm from the excitation of the isovector giant dipole resonance by α-scattering [64]). …”

Section: Spherical Nucleimentioning

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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Section: Spherical Nucleimentioning

confidence: 99%

Relativistic nuclear energy density functional constrained by low-energy QCD

et al. 2006

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“…It turned out that to get information on the neutron skin thickness one needs data obtained with probes having different sensitivities to the proton and neutron distributions. The methods for extracting the neutron skin thickness mostly include hadron scattering [8,9], antiprotonic atoms [10], and parity violating electron scattering [11][12][13], as well as the giant dipole resonance [14] and spin-dipole resonance [15,16] methods.…”

Section: Introductionmentioning

confidence: 99%

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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“…The method has been applied to obtain information on the variation of the neutron skin in the Sn isotopes [9]. For the relevant operator, a τ ± a [ σ a ⊗ r a ] JM , (J = 0, 1, 2) the summed ∆L = 1 strength is…”

Section: Spin-dipole Giant Resonancementioning

confidence: 99%

“…In [9] it has been proposed to utilize the excitation probability of the spin-dipole resonance in charge exchange reactions for determining the neutron skin. The method has been applied to obtain information on the variation of the neutron skin in the Sn isotopes [9].…”

Section: Spin-dipole Giant Resonancementioning

confidence: 99%

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Neutron skin and giant resonances in nuclei

Rodin

2007

Progress in Particle and Nuclear Physics

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Some aspects, both experimental and theoretical, of extracting the neutron skin ∆R from properties of isovector giant resonances are discussed. Existing proposals are critically reviewed. The method relying on the energy difference between the GTR and IAS is shown to lack sensitivity to ∆R. A simple explanation of the linear relation between the symmetry energy and the neutron skin is also presented.

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Excitation of Isovector Spin-Dipole Resonances and Neutron Skin of Nuclei

Cited by 201 publications

References 19 publications

Relativistic nuclear energy density functional constrained by low-energy QCD

Relativistic nuclear energy density functional constrained by low-energy QCD

Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

Neutron skin and giant resonances in nuclei

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