Excluded volume effects on cold neutron star phenomenology

Excluded volume effects on cold neutron star phenomenology

Observable properties of neutron stars are studied within a hadronic equation of state derived from the quark level. The effect of short-range repulsion is incorporated within the excluded volume framework. It is found that one can sustain neutron stars with masses as large as 2.2M⊙ even including h...

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Veröffentlicht in:Nucl.Phys.A 2024-10, Vol.1050, p.122928, Article 122928
Hauptverfasser: Leong, Jesper, Thomas, Anthony W., Guichon, Pierre A.M.
Format: Artikel
Sprache:eng
Schlagworte:
Astrophysics
Dense nuclear matter
Equation of state
Excluded volume effect
High Energy Physics - Phenomenology
Hyperons
Neutron star
Nuclear Theory
Physics
QMC
Short range repulsion
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Zusammenfassung:Observable properties of neutron stars are studied within a hadronic equation of state derived from the quark level. The effect of short-range repulsion is incorporated within the excluded volume framework. It is found that one can sustain neutron stars with masses as large as 2.2M⊙ even including hyperons in β equilibrium, while producing radii and tidal deformabilities consistent with current constraints.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2024.122928