The hyperon neutron star mean field model

Details The hyperon neutron star mean field model The hyperon neutron star mean field model

2006-09-18

arxiv.org/abs/nucl-th/0609047v1

Europhys.Lett.78:32001,2007

Physics

Nuclear Physics

Nuclear Theory

7 pages, 4 figures, 2 tables, EPL style

Scientific paper

10.1209/0295-5075/78/32001

In this paper the impact of the strength of hyperon-nucleon and hyperon-hyperon on the maximum neutron star mass is shown. The strong hyperon-hyperon coupling constant together with the additional nonlinear meson interaction terms lead to the essential softening of the equation of state and to the existence of another more compact branch of stable neutron star configurations. The analysis of the mass-radius relations leads to the conclusion that the additional stable configurations of hyperon-rich neutron stars are characterized by the reduced value of radii.

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