The influence of strength of hyperon-hyperon interactions on neutron star properties

Details The influence of strength of hyperon-hyperon interactions on neutron star properties The influence of strength of hyperon-hyperon interactions on neutron star properties

2005-06-06

arxiv.org/abs/hep-ph/0506059v1

J.Phys.G31:1009-1024,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 22 figures, accepted to be published in Journal of Physics G: Nuclear and Particle Physics

Scientific paper

10.1088/0954-3899/31/9/003

An equation of state of neutron star matter with strange baryons has been obtained. The effects of the strength of hyperon-hyperon interactions on the equations of state constructed for the chosen parameter sets have been analyzed. Numerous neutron star models show that the appearance of hyperons is connected with the increasing density in neutron star interiors. The performed calculations have indicated that the change of the hyperon-hyperon coupling constants affects the chemical composition of a neutron star. The obtained numerical hyperon star models exclude large population of strange baryons in the star interior.

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