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

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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 σ3 and σ4 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. © 2008 Elsevier B.V. All rights reserved.

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Sharma, M. M. (2008). Scalar-vector Lagrangian without nonlinear self-interactions of bosonic fields in the relativistic mean-field theory. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 666(2), 140–144. https://doi.org/10.1016/j.physletb.2008.07.005

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