Nonlinear {sigma},{delta} Couplings in a Relativistic Mean Field Theory for Neutron Star Matter

Journal Article · Thu Dec 02 04:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1843640· OSTI ID:20630375

Rocha, Sergio S ^[1]; Vasconcellos, Cesar A. Z.; Razeira, Moises ^[2]; Dillig, Manfred ^[3]

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1. Universidade do Extremo Sul Catarinense, CEP 88806-000 Criciuma, SC (Brazil)
2. Instituto de Fisica, Universidade Federal do Rio Grande do Sul, CEP 91501-970 Porto Alegre, Rio Grande do Sul (Brazil)
3. Institut fuer Theoretische Physik III, der Universitaet Erlangen-Nuernberg, D91058 Erlangen (Germany)

We study dense hadronic matter in a generalized relativistic mean field approach which contains nonlinear couplings of the {sigma}, {omega}, {rho}, {delta} fields and compare its predictions for properties of neutron stars with the corresponding results from different models found in the literature. Our predictions indicate a substantial modification in static global properties of nuclear matter and neutron stars with the inclusion of the {delta} meson into the formalism.

• OSTI ID: 20630375
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 739; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPARATIVE EVALUATIONS
MEAN-FIELD THEORY
NEUTRON STARS
NONLINEAR PROBLEMS
NUCLEAR MATTER
OMEGA-782 MESONS
QUANTUM FIELD THEORY
RELATIVISTIC RANGE
RHO-770 MESONS