A microscopic estimate of the nuclear matter compressibility and symmetry energy in relativistic mean-field models

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dc.creatorVretenar, D.
dc.creatorNiksic, T.
dc.creatorRing, P.
dc.date2003-02-24
dc.date.accessioned2026-07-07T11:32:41Z
dc.date.available2026-07-07T11:32:41Z
dc.descriptionThe relativistic mean-field plus RPA calculations, based on effective Lagrangians with density-dependent meson-nucleon vertex functions, are employed in a microscopic analysis of the nuclear matter compressibility and symmetry energy. We compute the isoscalar monopole and the isovector dipole response of $^{208}$Pb, as well as the differences between the neutron and proton radii for $^{208}$Pb and several Sn isotopes. The comparison of the calculated excitation energies with the experimental data on the giant monopole resonance in $^{208}$Pb, restricts the nuclear matter compression modulus of structure models based on the relativistic mean-field approximation to $K_{\rm nm}\approx 250 - 270$ MeV. The isovector giant dipole resonance in $^{208}$Pb, and the available data on differences between neutron and proton radii, limit the range of the nuclear matter symmetry energy at saturation (volume asymmetry) to 32 MeV $\leq a_4 \leq$ 36 MeV.
dc.description16 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/0302070
dc.identifierhttp://arxiv.org/abs/nucl-th/0302070
dc.identifierPhys.Rev.C68:024310,2003
dc.identifierdoi:10.1103/PhysRevC.68.024310
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197681
dc.subjectNuclear Theory
dc.titleA microscopic estimate of the nuclear matter compressibility and symmetry energy in relativistic mean-field models
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