Neutron Stars with Delta-Resonances in the Walecka and Zimanyi-Moszkowski Models

Details Neutron Stars with Delta-Resonances in the Walecka and Zimanyi-Moszkowski Models Neutron Stars with Delta-Resonances in the Walecka and Zimanyi-Moszkowski Models

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1296..354f&link_type=abstract

XI HADRON PHYSICS. AIP Conference Proceedings, Volume 1296, pp. 354-357 (2010).

Other

Neutron Stars, Resonance, Nuclear Structure, Mesons, Baryon Mass, Neutron Stars, Other Resonances, Collective Levels, Global Symmetries

Scientific paper

In the present work we have obtained the equation of state of the highly asymmetric dense stellar matter focusing on the delta resonance formation. We extended the nonlinear Walecka (NLW) and Zimanyi-Moszkowski (ZM) models to accommodate in the context of the relativistic mean field approximation the Rarita-Schwinger field for the spin 3/2 resonances. With the constructed stellar matter equations of state we solve numerically the TOV equation (Tolman-Oppenheimer-Volkoff) in order to determine the internal structure of neutron stars, and discuss the obtained masses versus radii diagram.

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