Criteria for nonlinear parameters of relativistic mean field models

A. Sulaksono, T. J. Bürvenich, P. -G. Reinhard, and J. A. Maruhn
Phys. Rev. C 79, 044306 – Published 9 April 2009

Abstract

Based on the properties of the critical and the actual effective masses of sigma and omega mesons, criteria to estimate the values of the isoscalar nonlinear terms of the standard relativistic mean field model that reproduce stable equations of state in respect to particle hole excitation at high densities are derived. The relation between nuclear matter stability and the symmetric nuclear matter properties are shown. The criteria are used to analyze in a more systematic way the high-density longitudinal and transverse instabilities of some parameter sets of relativistic mean field models. The critical role of the vector and vector-scalar nonlinear terms is also discussed quantitatively.

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  • Received 6 February 2009

DOI:https://doi.org/10.1103/PhysRevC.79.044306

©2009 American Physical Society

Authors & Affiliations

A. Sulaksono1,4, T. J. Bürvenich2, P. -G. Reinhard3, and J. A. Maruhn4

  • 1Departemen Fisika, FMIPA, Universitas Indonesia, Depok, 16424, Indonesia
  • 2Frankfurt Institute for Advanced Studies, Universität Frankfurt, D-60438 Frankfurt am Main, Germany
  • 3Institut für Theoretische Physik II, Universität Erlangen-Nürnberg, D-91058 Erlangen, Germany
  • 4Institut für Theoretische Physik, Universität Frankfurt, D-60438 Frankfurt am Main, Germany

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Issue

Vol. 79, Iss. 4 — April 2009

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