Hadron-quark phase transition: the QCD phase diagram and stellar conversion

Abstract

Different extensions of the Nambu-Jona-Lasinio model, known to satisfy expected QCD chiral symmetry aspects, are used to investigate a possible hadron-quark phase transition at zero temperature and to build the corresponding binodal sections. We have shown that the transition point is very sensitive to the model parameters and that both pressure and chemical potential increase drastically with the increase of the vector interaction strength in the quark sector. Within the same framework, the possibility of quark and hybrid star formation is analyzed. The same conclusions drawn before with respect to the coexistence pressure and chemical potentials are reinforced. We conclude that even if a transition from a metastable hadronic star to a quark star is thermodinamically possible, it is either energetically forbidden or gives rise to a blackhole. Nevertheless, conversions from metastable to hybrid stars are possible, but the mass difference between both compact objects is very small, never larger than 0.2 M${}_{\odot }$.

arXiv comment21 pages, 7 figures

References in corpus (45)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• QCD Phenomenology based on a Chiral Effective Lagrangian
• Determination of the Equation of State of Dense Matter
• NJL-model analysis of dense quark matter
• Phases of QCD: lattice thermodynamics and a field theoretical model
• Equation of state and neutron star properties constrained by nuclear physics and observation
• Phase Transitions in Warm, Asymmetric Nuclear Matter
• The maximum mass and radius of neutron stars and the nuclear symmetry energy
• The Neutron Star Mass-Radius Relation and the Equation of State of Dense Matter
• The Dense Matter Equation of State from Neutron Star Radius and Mass Measurements
• Kaon production in heavy ion reactions at intermediate energies
• Composition and stability of hybrid stars with hyperons and quark color-superconductivity
• Quark deconfinement and implications for the radius and the limiting mass of compact stars
• Gamma Ray Bursts from delayed collapse of neutron stars to quark matter stars
• The equation of state for dense nucleonic matter from a meta-modeling. II. Predictions for neutron stars properties
• Modern compact star observations and the quark matter equation of state
• Strange quark matter with dynamically generated quark masses
• The Problem of Matter Stability in the Nambu--Jona-Lasinio Model
• Strange quark stars within the Nambu-Jona-Lasinio model
• Testing Deconfinement at High Isospin Density
• Phase diagram and critical properties within an effective model of QCD: the Nambu-Jona-Lasinio model coupled to the Polyakov loop
• Thermodynamics and critical behavior in the Nambu-Jona-Lasinio model of QCD
• Stability of CFL cores in Hybrid Stars
• The Phase Transition to the Quark Gluon Plasma: Recent Results from Lattice Calculations
• The Hot QCD White Paper: Exploring the Phases of QCD at RHIC and the LHC
• On the compactness of the isolated neutron star RX J0720.4-3125
• The Deconfinement Phase Transition in Asymmetric Matter
• Two-solar-mass hybrid stars: a two model description with the Nambu-Jona-Lasinio quark model
• Stability windows for proto-quark stars
• Repulsive Vector Interaction in Three Flavor Magnetized Quark and Stellar Matter
• Influence of vector interactions on the hadron-quark/gluon phase transition
• Phase diagrams in the Hadron-PNJL model
• Symmetry Energy Effects on the Mixed Hadron-Quark Phase at High Baryon Density
• Chiral model approach to quark matter nucleation in neutron stars
• Hadron-quark phase transition in asymmetric matter with boson condensation
• The importance of the mixed phase in hybrid stars built with the Nambu-Jona-Lasinio model
• NA49/NA61: results and plans on beam energy and system size scan at the CERN SPS
• Neutron stars: from the inner crust to the core with the (Extended) Nambu-Jona-Lasinio model
• Hyperon threshold and stellar radii
• Symmetry energy and neutron star properties in the saturated Nambu-Jona-Lasinio model
• Phase transition in compact stars: nucleation mechanism and $\gamma$-ray bursts revisited
• First Order Quark-Hadron Phase Transition in the NJL-Type Nuclear and Quark Model
• Quark-Hadron Phase-Transition in an Extended NJL Model with Scalar-Vector Interaction
• Nuclear Astrophysics in the New Era of Multimessenger Astronomy
• Probing the hadron-quark mixed phase at high isospin and baryon density - Sensitive observables

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