Do Delta Baryons Play a Role in Neutron Stars?

Abstract

The presence of exotic hadrons, such as hyperons and $\Delta$ isobars, in the dense nuclear matter in their cores has been shown to produce important changes in the properties of neutron stars. Within the quark-meson coupling model, we show that the many-body forces generated by the change in the internal quark structure of the baryons in the strong scalar mean fields generated in dense nuclear matter prohibit the appearance of $\Delta$ isobars.

References in corpus (23)

• 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
• The NANOGrav 11-year Data Set: High-precision timing of 45 Millisecond Pulsars
• Measuring the neutron star equation of state using X-ray timing
• The role of nucleon structure in finite nuclei
• A quark-meson model for nuclear and neutron matter
• Nucleon and hadron structure changes in the nuclear medium and impact on observables
• Cold uniform matter and neutron stars in the quark-mesons-coupling model
• Competition between delta isobars and hyperons and properties of compact stars
• Binding of Hypernuclei in the Latest Quark-Meson Coupling Model
• Physical Origin of Density Dependent Force of the Skyrme Type within the Quark Meson Coupling Model
• Critical Density and Impact of $\Delta (1232)$ Resonance Formation in Neutron Stars
• Quark structure and nuclear effective forces
• Quark-Meson-Coupling (QMC) model for finite nuclei, nuclear matter and beyond
• Implications from GW170817 for $\Delta$-isobar admixed hypernuclear compact stars
• Quark-Meson Coupling Model, Nuclear Matter Constraints and Neutron Star Properties
• Symmetric and asymmetric nuclear matter in the relativistic approach at finite temperatures
• Isovector Effects in Neutron Stars, Radii and the GW170817 Constraint
• Binding of hypernuclei, and phtoproduction of $\Lambda$-hypernuclei in the latest quark-meson coupling model
• Role of Hyperons in Neutron Stars
• Hypernuclei in the quark-meson coupling model
• Equation of State for Neutron Stars in the Quark-Meson Coupling Model with the Cloudy Bag

Cited by in corpus (17)

• Warming Nuclear Pasta with Dark Matter: Kinetic and Annihilation Heating of Neutron Star Crusts
• Delta baryons and diquark formation in the cores of neutron stars
• Improved Treatment of Dark Matter Capture in Neutron Stars III: Nucleon and Exotic Targets
• Massive $\Delta$-resonance admixed hypernuclear stars with anti-kaon condensations
• Delta Baryons in Neutron-Star Matter under Strong Magnetic Fields
• Chiral symmetry restoration and the $\Delta$ matter formation in neutron stars
• The Role of Baryon Structure in Neutron Stars
• Exploring the effects of Delta Baryons in magnetars
• Magnetic moments of the octet, decuplet, low-lying charm, and low-lying bottom baryons in a nuclear medium
• Baryonic dense matter in view of gravitational-wave observations
• Anatomy of critical fluctuations in hadronic matter
• Hyperonization in compact stars
• Correlation between the symmetry energy slope and the deconfinement phase transition
• Exploring $\Delta$-resonance in neutron stars: implications from astrophysical and nuclear observations
• A study of the elastic $\pi N$ scattering at finite baryon density
• An Undergraduate Approach to the Quantum Hadrodynamics and the Physics of Neutron Stars Part II: Neutron Stars' Exotic Content
• $f$-mode Oscillations for Hyperons and H-dibaryons in Neutron Stars