Physics
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrvc..70e8801m&link_type=abstract
Physical Review C, vol. 70, Issue 5, id. 058801
Physics
32
Nuclear Matter Aspects Of Neutron Stars, Relativistic Models, Nuclear Matter, Forces In Hadronic Systems And Effective Interactions
Scientific paper
The consequences for compact star properties of including the δ mesons in the Lagrangian density of the nonlinear Walecka model are investigated. The equations of state for neutrino free and neutrino trapped with and without the δ mesons are compared. We conclude that the sensitivity to the δ mesons depends on the hadronic contents of the star, i.e., stars with only protons and neutrons behave in a different way than stars with protons, neutrons, and hyperons. Moreover, although the properties of maximum mass stable protoneutron stars with trapped neutrinos are essentially equivalent when the δ meson is included, the neutrino content is affected by its presence.
Menezes Débora P.
Providencia Constança
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