Volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

Abstract

The volume and surface components of the nuclear symmetry energy (NSE) and their ratio are calculated within the coherent density fluctuation model (CDFM). The estimations use the results of the model for the NSE in finite nuclei based on the Brueckner energy-density functional for nuclear matter. In addition, we present results for the NSE and its volume and surface contributions obtained by using the Skyrme energy-density functional. The CDFM weight function is obtained using the proton and neutron densities from the self-consistent HF+BCS method with Skyrme interactions. We present and discuss the values of the volume and surface contributions to the NSE and their ratio obtained for the Ni, Sn, and Pb isotopic chains studying their isotopic sensitivity. The results are compared with estimations of other approaches which have used available experimental data on binding energies, neutron-skin thicknesses, excitation energies to isobaric analog states (IAS) and also with results of other theoretical methods.

13 pages, 12 figures, 3 tables, accepted for publication in Physical Review C

References in corpus (16)

• Nuclear symmetry energy probed by neutron skin thickness of nuclei
• Constraints on the symmetry energy and on neutron skins from the pygmy resonances in 68Ni and 132Sn
• Symmetry Energy I: Semi-Infinite Matter
• Neutron and Proton Transverse Emission Ratio Measurements and the Density Dependence of the Asymmetry Term of the Nuclear Equation of State
• Density dependence of the nuclear symmetry energy: a microscopic perspective
• Incompressibility of neutron-rich matter
• Surface Symmetry Energy of Nuclear Energy Density Functionals
• Origin of the neutron skin thickness of 208Pb in nuclear mean-field models
• Asymmetric nuclear matter and neutron-skin in extended relativistic mean field model
• Analysis of bulk and surface contributions in the neutron skin of nuclei
• Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations
• Symmetry and Surface Symmetry Energies in Finite Nuclei
• Symmetry Energy in Nuclear Surface
• The neutron skin of ${}^{208}$Pb and the density dependence of the symmetry energy
• Nuclear isospin mixing and elastic parity-violating electron scattering
• Ground-state properties and symmetry energy of neutron-rich and neutron-deficient Mg isotopes

Cited by in corpus (9)

• Temperature dependence of the symmetry energy and neutron skins in Ni, Sn, and Pb isotopic chains
• Isospin dependent properties of the isotopic chain of Scandium and Titanium nuclei within the relativistic mean-field formalism
• Appearance of peak in symmetry energy at N = 126 for Pb isotopic chain within relativistic energy density functional
• Symmetry energy properties of neutron-rich nuclei from the coherent density fluctuation model applied to nuclear matter calculations with Bonn potentials
• Incompressibility and Symmetry Energy of Neutron Star
• Isoscalar Giant Monopole Resonance in Spherical Nuclei as a Nuclear Matter Incompressibility Indicator
• Relativistic energy density functional from momentum space to coordinate space within a coherent density fluctuation model
• Persistence of the N = 50 shell closure over the isotopic chains of Sc, Ti, V and Cr nuclei using relativistic energy density functional
• Systematic study for the surface properties of neutron star