2011/06/16 by E. N. E. van Dalen, H. Müther · 15 citations
Physics and Astronomy · #Atomic and Molecular Physics #Isoscalar #Isovector #Mathematical physics #Mean field theory #Meson #Nuclear matter #Nuclear physics #Nuclear physics research studies #Nucleon #Particle physics #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #nucl-th
paper · pdf · doi:10.1103/physrevc.84.024320
published in Physical Review C 84(2) (American Institute of Physics) · 12 pages, 6 figures
arxiv created 2011/06/16 · openalex publication_date 2011/08/25 · arxiv updated 2011/09/02 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A set of relativistic mean-field models is constructed, which includes the Hartree and Hartree-Fock (HF) approximations accounting for the exchange of isoscalar and isovector mesons as well as the pion. Density-dependent coupling functions are determined to reproduce the components of the nucleon self-energy at the Fermi surface, obtained within the Dirac-Brueckner-HF (DBHF) approach by using a realistic nucleon-nucleon interaction. It is investigated to which extent the various mean-field models can reproduce the DBHF results for the momentum dependence of the self-energies and the total energy of infinite matter. Also, the mean-field models are used to evaluate the bulk properties of spherical closed-shell nuclei. We find that the HF model, which allows for the exchange of \ensuremathσ,\phantom\rule0.28em0ex\ensuremathω,\phantom\rule0.28em0ex\ensuremathρ, and \ensuremathδ mesons and pions, yields the best reproduction of the DBHF results in infinite matter and also provides a good description of the properties of finite nuclei without any adjustment of parameters.