The neutron skin thickness of ${}^{48}$Ca from a nonlocal-dispersive-optical-model analysis

Abstract

A nonlocal dispersive-optical-model analysis has been carried out for neutrons and protons in ${}^{48}$Ca. Elastic-scattering angular distributions, total and reaction cross sections, single-particle energies, the neutron and proton numbers, and the charge distribution have been fitted to extract the neutron and proton self-energies both above and below the Fermi energy. From the single-particle propagator resulting from these self-energies we have determined the charge and neutron matter distributions in ${}^{48}$Ca. A neutron skin of 0.249$\pm$0.023~fm is deduced. The energy dependence of the total neutron cross sections is shown to have strong sensitivity to the skin thickness.

5 pages, 4 figures

References in corpus (6)

• Nuclear symmetry energy probed by neutron skin thickness of nuclei
• Neutron skin of 208Pb, nuclear symmetry energy, and the parity radius experiment
• Symmetry Energy III: Isovector Skins
• Novel applications of the dispersive optical model
• Elastic nucleon-nucleus scattering as a direct probe of correlations beyond the independent-particle model
• Reexamining the neutron skin thickness within a density dependent hadronic model

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