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Neutron Star Structure with Hyperonic Matter from QCD Sum Rule Couplings

A calculation of neutron-star structure for matter containing hyperons using a relativistic mean-field equation of state whose meson-hyperon coupling constants are taken from QCD sum rules. Under charge neutrality and beta equilibrium it yields the particle fractions, the mass-radius relation from the Tolman-Oppenheimer-Volkoff equations, and the tidal Love number and deformability, which are compared against pulsar and gravitational-wave observations.

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Impact of QCD sum rules coupling constants on neutron stars structure F. Moradi Jangala ,∗H. R.

This paper computes the structure of neutron stars containing hyperons using a relativistic mean-field model of dense matter, in which nucleons and hyperons interact through exchanged meson fields. I…