Relativistic mean-field model with density-dependent meson-nucleon couplings

Details Relativistic mean-field model with density-dependent meson-nucleon couplings Relativistic mean-field model with density-dependent meson-nucleon couplings

2007-03-13

arxiv.org/abs/nucl-th/0703039v1

Prog.Theor.Phys.118:175-180,2007

Physics

Nuclear Physics

Nuclear Theory

6 pages, 3 figures

Scientific paper

10.1143/PTP.118.175

Within the relativistic mean-field approach, we extend the Miyazaki model, where the NN$\sigma$ and NN$\omega$ interactions are modified to suppress the couplings between positive- and negative-energy states of a nucleon in matter. Assuming appropriate density-dependence of the meson-nucleon couplings, we study nuclear matter and finite nuclei. The model can reproduce the observed properties of $^{16}$O and $^{40}$Ca well. We also examine if the model is natural.

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