Quarkyonic matter and quarkyonic stars in an extended RMF model

Abstract

By combining RMF models and equivparticle models with density-dependent quark masses, we construct explicitly ``a quark Fermi Sea'' and ``a baryonic Fermi surface'' to model the quarkyonic phase, where baryons with momentums ranging from zero to Fermi momentums are included. The properties of nuclear matter, quark matter, and quarkyonic matter are then investigated in a unified manner, where quarkyonic matter is more stable and energy minimization is still applicable to obtain the microscopic properties of dense matter. Three different covariant density functionals TW99, PKDD, and DD-ME2 are adopted in our work, where TW99 gives satisfactory predictions for the properties of nuclear matter both in neutron stars and heavy-ion collisions and quarkyonic transition is unfavorable. Nevertheless, if PKDD with larger slope of symmetry energy $L$ or DD-ME2 with larger skewness coefficient $J$ are adopted, the corresponding EOSs are too stiff according to both experimental and astrophysical constraints. The situation is improved if quarkyonic transition takes place, where the EOSs become softer and can accommodate various experimental and astrophysical constraints.

References in corpus (40)

• A Massive Pulsar in a Compact Relativistic Binary
• 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
• A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
• The equation of state in (2+1)-flavor QCD
• Relativistic Continuum Hartree Bogoliubov Theory for Ground State Properties of Exotic Nuclei
• Accurate Determination of the Neutron Skin Thickness of ${}^{208}$Pb through Parity-Violation in Electron Scattering
• Nuclear symmetry energy probed by neutron skin thickness of nuclei
• Exotic modes of excitation in atomic nuclei far from stability
• Cold Quark Matter
• Constraints on neutron star radii based on chiral effective field theory interactions
• Precision Determination of the Neutral Weak Form Factor of ${}^{48}$Ca
• New Critical Point Induced by the Axial Anomaly in Dense QCD
• Astrophysical Constraints on the Symmetry Energy and the Neutron Skin of ${}^{208}$Pb with Minimal Modeling Assumptions
• Phenomenological QCD equation of state for massive neutron stars
• Pulsars as Astrophysical Laboratories for Nuclear and Particle Physics
• Hadron-quark mixed phase in hyperon stars
• Bound clusters on top of doubly magic nuclei
• Deconfinement phase transition in hybrid neutron stars from the Brueckner theory with three-body forces and a quark model with chiral mass scaling
• Thermodynamics with density and temperature dependent particle masses and properties of bulk strange quark matter and strangelets
• The Dipole Magnetic Field and Spin-down Evolutions of The High Braking Index Pulsar PSR J1640-4631
• Neutron star equilibrium configurations within a fully relativistic theory with strong, weak, electromagnetic, and gravitational interactions
• Thermodynamic consistency, quark mass scaling, and properties of strange matter
• Relativistic description of dense matter equation of state and compatibility with neutron star observables: a Bayesian approach
• Merger and post-merger of binary neutron stars with a quark-hadron crossover equation of state
• Gravitational Wave Signal for Quark Matter with Realistic Phase Transition
• Plausible presence of new state in neutron stars with masses above $0.98M_{\mathrm{TOV}}$
• The slope, the hill, the drop, and the swoosh: Learning about the nuclear matter equation of state from the binary Love relations
• Unified neutron star EOSs and neutron star structures in RMF models
• Thermal Properties of Asymmetric Nuclear Matter
• Constraining quark-hadron interface tension in the multi-messenger era
• Systematic study on the quark-hadron mixed phase in compact stars
• Nearly model-independent constraints on dense matter equation of state in a Bayesian approach
• Phenomenological QCD equations of state for neutron star dynamics: Nuclear-2SC continuity and evolving effective couplings
• BCS-BEC crossover in nuclear matter with the relativistic Hartree-Bogoliubov theory
• Revisiting the Equation of State of Hybrid Stars in the Dyson-Schwinger Equation Approach to QCD
• Quarkyonic matter state of neutron stars
• Structure formation during phase transitions in strongly interacting matter
• Case for quarkyoniclike matter from a constituent quark model
• Quark condensate and chiral symmetry restoration in neutron stars

Cited by in corpus (7)

• Probing Quarkyonic Matter in Neutron Stars with the Bayesian Nuclear-Physics Multi-Messenger Astrophysics Framework
• Extended NJL model for baryonic matter and quark matter
• Bayesian inference of strangeon matter using the measurements of PSR J0437-4715 and GW190814
• Charge symmetry breaking in hypernuclei within RMF model
• Properties and microscopic structures of dense stellar matter in RMF models
• Quarkyonic matter and hadron-quark crossover from an ultracold atom perspective
• The maximum mass and rotational kinetic energy of rapidly rotating neutron stars