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https://doi.org/10.1103/physrevc.104.055805
Copy DOIJournal: Physical Review C | Publication Date: Nov 23, 2021 |
Citations: 3 |
We develop the equation of state of dense neutron star matter with nucleons, nucleons and hyperons, nucleons and delta, as well as including strange interactions through strange meson-hyperon couplings to assess the effect of both the soft and stiff symmetry energy, determined in the recent PREX-II experiment, on the properties of neutron stars. The macroscopic properties of neutron stars such as the mass, radius and tidal deformability are a direct consequence of the underlying equation of state of dense neutron star matter. Given the recent advances in constraining the above macroscopic observations from gravitational wave analysis, NICER and radio observations, we study here the effect of a variation in the symmetry energy on such observational properties of neutron stars with different possible compositions in a relativistic quark model. We observe that the stiff symmetry energy satisfies the current constraints on maximum mass and radius, but creates tension with tidal deformability values.
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