https://doi.org/10.1140/epja/i2002-10265-7
Naturalness of nonlinear 
self-couplings in relativistic mean-field models for neutron stars
1
Instituto de Física, Universidade Federal do Rio Grande do Sul, 15051, Porto Alegre, Brazil
2
Institut für Theoretische Physik III, Universität Erlangen-Nürnberg, 91058, Erlangen, Germany
* e-mail: mdillig@theorie3.physik.uni-erlangen.de
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 
, 
fields with estimates from microscopic 
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.
© Società Italiana di Fisica and Springer-Verlag, 2003
