Neutron stars with Bogoliubov quark-meson coupling model

Abstract

A quark-meson coupling model based on the quark model proposed by Bogoliubov for the description of the quark dynamics is developed and applied to the description of neutron stars. Starting from a su(3) symmetry approach, it is shown that this symmetry has to be broken in order to satisfy the constraints set by the hypernuclei and by neutron stars. The model is able to describe observations such as two solar mass stars or the radius of canonical neutron stars within the uncertainties presently accepted. If the optical potentials for $\Lambda$ and $\Xi$ hyperons in symmetric nuclear matter at saturation obtained from laboratory measurements of hypernuclei properties are imposed the model predicts no strangeness inside neutron stars.

14 pages, 4 figures, 1 table, revised and re submitted for publication to Physical Review C journal

References in corpus (17)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Multi-messenger Observations of a Binary Neutron Star Merger
• PSR J0030+0451 Mass and Radius from NICER Data and Implications for the Properties of Neutron Star Matter
• A NICER View of PSR J0030+0451: Millisecond Pulsar Parameter Estimation
• Tidal Love numbers of neutron stars
• Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
• Incompressibility in finite nuclei and nuclear matter
• Cold uniform matter and neutron stars in the quark-mesons-coupling model
• Constraining hypernuclear density functional with $\Lambda$-hypernuclei and compact stars
• The Vlasov formalism for extended relativistic mean field models: the crust-core transition and the stellar matter equation of state
• Double-$\Lambda$ hypernuclei in the relativistic mean-field theory
• A study of hyperons in nuclear matter based on chiral effective field theory
• Properties of hyperonic matter in strong magnetic fields
• Hyperon star in a modified quark meson coupling model
• Quark-meson coupling model for antikaon condensation in neutron star matter with strong magnetic fields

Cited by in corpus (1)

• The Role of Baryon Structure in Neutron Stars