Naturalness of nonlinear \(\sigma, \omega\) self-couplings in relativistic mean-field models for neutron stars

  • E. F. Lütz
  • S. S. Rocha
  • A. R. Taurines
  • G. F. Marranghello
  • M. DilligEmail author
  • C. A. Z. Vasconcellos


We investigate dense hadronic matter in a relativistic mean-field approach. For a generalized baryon-meson Lagrangian effective field theory, we confront expansions from naive dimensional analysis for the nonlinear self-couplings of the \(\sigma\), \(\omega\) fields with estimates from microscopic \(q \overline q\) pair creation models from Quantum Chromodynamics. Upon adjusting the model parameters to ordinary nuclear matter, we discuss implications of the approach to dense hadronic matter and in particular to neutron stars.


Field Theory Neutron Star Nuclear Matter Dimensional Analysis Effective Field 
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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • E. F. Lütz
    • 1
  • S. S. Rocha
    • 1
  • A. R. Taurines
    • 1
  • G. F. Marranghello
    • 1
  • M. Dillig
    • 2
    Email author
  • C. A. Z. Vasconcellos
    • 1
  1. 1.Instituto de FísicaUniversidade Federal do Rio Grande do SulPorto AlegreBrazil
  2. 2.Institut für Theoretische Physik IIIUniversität Erlangen-NürnbergErlangenGermany

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