Role of nonlinear vector meson interactions in hyperon stars
Ilona Bednarek, Ryszard Manka
TL;DR
This paper investigates how nonlinear vector meson interactions influence the equation of state of hyperon-rich neutron star matter, leading to stiffer equations and higher maximum neutron star masses.
Contribution
It introduces an extended nonlinear model with mixed vector meson terms to better understand hyperon star properties.
Findings
Nonlinear vector meson interactions stiffen the neutron star matter equation of state.
Inclusion of these interactions results in higher maximum neutron star masses.
The model provides a more accurate description of hyperon-rich neutron star matter.
Abstract
The extended nonlinear model has been applied to construct neutron star matter equation of state. In the case of neutron star matter with non-zero strangeness the extension of the vector meson sector by the inclusion of nonlinear mixed terms results in the stiffening of the equation of state and accordingly in the higher value of the maximum neutron star mass.
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