Hadronic and Quark Matter – Applications in AstrophysicsNo Access

ISOVECTOR COMPONENTS OF LIGHT SCALAR MESON AND NUCLEAR MATTER PROPERTIES

Instituto de Física, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil

Search for more papers by this author

E. LÜTZ

Instituto de Física, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil

Search for more papers by this author

M. RAZEIRA

Instituto de Física, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil

Search for more papers by this author

B. E. J. BODMANN

Instituto de Física, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil

Search for more papers by this author

M. DILLIG

Instituto de Física, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, Porto Alegre, RS, 91501-970, Brazil

Permanent address: Institut für Theoretisch Physik III, Universität Erlangen-Nürnberg, Staudtstrae 7, Erlangen, D-91058, Germany.

Search for more papers by this author

, and

G. F. MARRANGHELLO

Universidade Fedral de Pelotas, Campus Bagé, Rua Carlos Barbosa, SN, Bage, RS, 96400-970, Brazil

Search for more papers by this author

https://doi.org/10.1142/S0218301307008604Cited by:2 (Source: Crossref)

Abstract

We have predicted (contribution to this issue) an isovector component of the light scalar meson sector by using the chiral symmetry transformation formalism. On the basis of this result, we study dense hadronic matter in a generalized relativistic mean field approach with σ, ω and ρ mesons as well as nonlinear self-couplings of the I = 1 component of a light scalar meson field and compare its predictions for neutron star properties with results from different models for nuclear matter found in the literature.