Liquid-gas phase transition in nuclear matter including strangeness

Abstract

We apply the chiral SU(3) quark mean field model to study the properties of strange hadronic matter at finite temperature. The liquid-gas phase transition is studied as a function of the strangeness fraction. The pressure of the system cannot remain constant during the phase transition, since there are two independent conserved charges (baryon and strangeness number). In a range of temperatures around 15 MeV (precise values depending on the model used) the equation of state exhibits multiple bifurcates. The difference in the strangeness fraction $f_s$ between the liquid and gas phases is small when they coexist. The critical temperature of strange matter turns out to be a non-trivial function of the strangeness fraction.

15 pages, 7 figures

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Cited by in corpus (9)

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• Extended quark mean-field model for neutron stars
• Neutron stars and strange stars in the chiral SU(3) quark mean field model
• Phase transition from hadronic matter to quark matter
• Quark mean field model with pion and gluon corrections for $\Lambda ,{\Xi }^0$ hypernuclei and neutron stars
• The quark mean field model with pion and gluon corrections
• Liquid-gas Phase Transition in Strange Hadronic Matter with Weak Y-Y Interaction
• Strangeness thermodynamic instabilities in hot and dense nuclear matter
• Effect of hyperons on phase coexistence in strange matter