Up-down quark stars in the two-families scenario yield tidal deformabilities compatible with GW170817, constraining the effective bag constant to approximately 50 MeV/fm^3.
Strange quark matter with dynamically generated quark masses
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abstract
Bulk properties of strange quark matter (SQM) are investigated within the SU(3) Nambu-Jona-Lasinio model. In the chiral limit the model behaves very similarly to the MIT bag model which is often used to describe SQM. However, when we introduce realistic current quark masses, the strange quark becomes strongly disfavored, because of its large dynamical mass. We conclude that SQM is not absolutely stable.
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Probing up-down quark matter via gravitational waves
Up-down quark stars in the two-families scenario yield tidal deformabilities compatible with GW170817, constraining the effective bag constant to approximately 50 MeV/fm^3.