Asymmetric nuclear matter in the relativistic mean field approach with vector cross-interaction

Abstract

Asymmetric nuclear matter is studied in the frame of relativistic mean-field theory, using scalar-isoscalar sigma, vector-isoscalar omega meson together with their selfinteractions, vector-isovector rho meson with its cross-interaction with omega meson too, and scalar-isovector delta meson as degrees of freedom. The model is used to parameterize the nuclear matter properties results calculated by more fundamental Dirac-Brueckner-Hartree-Fock theory and thus to provide an effective DBHF model applicable also to finite nuclei. Vector omega-rho cross-interaction seems to be an useful degree of freedom for describing of the asymmetric nuclear matter, mostly due to its impact on density dependence of the symmetry energy.

17 pages, 5 figures, REVTeX 4, submitted to Phys. Rev. C

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• Reexamining the neutron skin thickness within a density dependent hadronic model
• Determining the density dependence of the nuclear symmetry energy using heavy-ion reactions
• Effects of the symmetry energy on the kaon condensates in the QMC Model
• Properties of hot finite nuclei and associated correlations with infinite nuclear matter
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