Electromagnetic and isovector terms in standard relativistic mean field model

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Abstract

The effects of auxiliary contribution in forms of electromagnetic tensors and relativistic electromagnetic exchange in local density approximation as well as δ meson and isovector density-dependent nonlinear terms in standard relativistic mean field model constrained by nuclear matter stability criteria in some selected finite nuclei and nuclear matter properties are studied. It is found that in the case of finite nuclei, the electromagnetic tensors play the most dominant part compared to other auxiliary terms. Due to the presence of electromagnetic tensors, the binding energies prediction of the model can be improved quite significantly. However, these terms do not yield demanded effects for rms radii prediction. In the case of nuclear matter properties, the isovector density-dependent nonlinear term plays the most crucial role in providing predictions which are quite compatible with experimental constraints. We have also shown these auxiliary contributions are indeed unable to improve the single particle spectrum results of the model.

Original languageEnglish
Pages (from-to)1983-2010
Number of pages28
JournalInternational Journal of Modern Physics E
Volume20
Issue number9
DOIs
Publication statusPublished - 1 Sep 2011

Keywords

  • Relativistic mean field
  • finite nuclei
  • nuclear matter

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