Instabilities of relativistic mean field models and the role of nonlinear terms

Anto Sulaksono, Terry Mart, T. J. Bürvenich, J. A. Maruhn

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11 Citations (Scopus)

Abstract

The instability of nuclear matter due to particle-hole excitation modes has been studied in the framework of several relativistic mean-field (RMF) models. It is found that both the longitudinal and the transversal modes depend sensitively on the parameter sets used. The important impact of the vector and vector-scalar nonlinear terms on the stability of both modes is demonstrated. Our finding corroborates the result of previous studies, namely that certain RMF models cannot be used in high-density applications. However, we show that for certain parameter sets of RMF models this shortcoming can be alleviated by adding these nonlinear terms.

Original languageEnglish
Article number041301
JournalPhysical Review C - Nuclear Physics
Volume76
Issue number4
DOIs
Publication statusPublished - 19 Oct 2007

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