Influence of the single-particle structure on the nuclear surface and the neutron skin

Abstract

We analyze the influence of the single-particle structure on the neutron density distribution and the neutron skin in Ca, Ni, Zr, Sn, and Pb isotopes. The nucleon density distributions are calculated in the Hartree-Fock+BCS approach with the SLy4 Skyrme force. A close correlation is found between the quantum numbers of the valence neutrons and the changes in the position and the diffuseness of the nuclear surface, which in turn affect the neutron skin thickness. Neutrons in the valence orbitals with low principal quantum number and high angular momentum mainly displace the position of the neutron surface outwards, while neutrons with high principal quantum number and low angular momentum basically increase the diffuseness of the neutron surface. The impact of the valence shell neutrons on the tail of the neutron density distribution is discussed.

arXiv comment17 pages, 14 figures

References in corpus (49)

• The Physics of Neutron Stars
• Neutron Star Observations: Prognosis for Equation of State Constraints
• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• Neutron Star Structure and the Neutron Radius of 208Pb
• Constraints on the density dependence of the symmetry energy
• Nuclear symmetry energy probed by neutron skin thickness of nuclei
• Measurement of the Neutron Radius of 208Pb Through Parity-Violation in Electron Scattering
• Determination of the stiffness of the nuclear symmetry energy from isospin diffusion
• Neutron Radii in Mean-Field Models
• Neutron skin of 208Pb, nuclear symmetry energy, and the parity radius experiment
• Parity Violating Measurements of Neutron Densities
• Systematic study of deformed nuclei at the drip lines and beyond
• The neutron radii of Lead and neutron stars
• The Giant Dipole Resonance as a quantitative constraint on the symmetry energy
• Density dependence of the symmetry energy and the nuclear equation of state: A Dynamical and Statistical model perspective
• Core-crust transition in neutron stars: predictivity of density developments
• On the Lorentz structure of the symmetry energy
• Neutron skin thickness in droplet model with surface width dependence: indications of softness of the nuclear symmetry energy
• Constraining the symmetry energy at subsaturation densities using isotope binding energy difference and neutron skin thickness
• Electric Dipole Polarizability in ${}^{208}$Pb: insights from the Droplet Model
• On the nuclear symmetry energy and the neutron skin in neutron-rich nuclei
• Neutron density distributions from antiprotonic 208Pb and 209Bi atoms
• Nuclear Skins and Halos in the Mean-Field Theory
• Symmetry energy from the nuclear collective motion: constraints from dipole, quadrupole, monopole and spin-dipole resonances
• Density dependence of the symmetry energy from neutron skin thickness in finite nuclei
• Neutron Densities from a Global Analysis of Medium Energy Proton Nucleus Elastic Scattering
• Pairing Properties In Relativistic Mean Field Models Obtained From Effective Field Theory
• Origin of the neutron skin thickness of 208Pb in nuclear mean-field models
• Analysis of bulk and surface contributions in the neutron skin of nuclei
• Low-lying dipole response: isospin character and collectivity in ${}^{68}$Ni, ${}^{132}$Sn and ${}^{208}$Pb
• Electroweak Measurements of Neutron Densities in CREX and PREX at JLab, USA
• Low-energy isovector and isoscalar dipole response in neutron-rich nuclei
• Atomic Parity Non-Conservation, Neutron Radii, and Effective Field Theories of Nuclei
• Theoretical study of elastic electron scattering off stable and exotic nuclei
• Antiproton-nucleus potentials from global fits to antiprotonic X-rays and radiochemical data
• Neutron skin uncertainties of Skyrme energy density functionals
• Symmetry energy of deformed neutron-rich nuclei
• Equation of state of the neutron star matter, and the nuclear symmetry energy
• Symmetry Energy Constraints from Giant Resonances: A Theoretical Overview
• Nuclear Halos and Drip Lines in Symmetry-Conserving Continuum HFB Theory
• Parity violating elastic electron scattering and neutron density distributions in the Relativistic Hartree-Bogoliubov model
• Density dependent hadronic models and the relation between neutron stars and neutron skin thickness
• Electron scattering in isotonic chains as a probe of the proton shell structure of unstable nuclei
• Elastic and quasi-elastic electron scattering off nuclei with neutron excess
• Neutron density distributions for atomic parity nonconservation experiments
• Isospin Dependence of Proton and Neutron Radii within Relativistic Mean Field Theory
• Unified approach to nuclear densities from exotic atoms
• Neutron-skin thickness of finite nuclei in relativistic mean-field models with chiral limits
• Neutron halos in heavy nuclei -- relativistic mean field approach

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• The surface properties of neutron-rich exotic nuclei within relativistic mean field formalisms
• Swelling of doubly magic ${}^{48}$Ca core in Ca isotopes beyond $N=28$
• Isoscalar and neutron modes in the E1 spectra of Ni isotopes and the relevance of shell effects and the continuum
• Scission configuration in the self-consistent calculations with neck constraint
• Reappraisal of the limit on the variation in $\alpha$ implied by Oklo
• Isospin dependent properties of the isotopic chain of Scandium and Titanium nuclei within the relativistic mean-field formalism
• Constrained correlated-Gaussians for hyperspherical calculations