Scalar-vector Lagrangian without nonlinear self-interactions of bosonic fields in the relativistic mean-field theory

Abstract

A new Lagrangian model without nonlinear scalar self-interactions in the relativistic mean-field (RMF) theory is proposed. Introducing terms for scalar-vector interactions (SVI), we have developed a RMF Lagrangian model for finite nuclei and nuclear matter. It is shown that by inclusion of SVI in the basic RMF Lagrangian, the nonlinear sigma^3 and sigma^4 terms can be dispensed with. The SVI Lagrangian thus obtained provides a good description of ground-state properties of nuclei along the stability line as well as far away from it. This Lagrangian model is also able to describe experimental data on the breathing-mode giant monopole resonance energies well.

A few statements corrected and updated. To be published in Phys. Lett. B

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Cited by in corpus (7)

• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
• Time-odd mean fields in covariant density functional theory I. Non-rotating systems
• Relativistic Mean-Field Models with Scaled Hadron Masses and Couplings: Hyperons and Maximum Neutron Star Mass
• Compiled Properties of Nucleonic Matter and Nuclear and Neutron Star Models from Non-Relativistic and Relativistic Interactions
• The breathing-mode giant monopole resonance and the surface compressibility in the relativistic mean-field theory
• Criteria for nonlinear parameters of relativistic mean field models
• Novel features of asymmetric nuclear matter from terrestrial experiments and astrophysical observations of neutron stars