Liquid-gas phase transition in strange hadronic matter

Abstract

The liquid-gas phase transition in strange hadronic matter is studied utilizing an extended Furnstahl-Serot-Tang model with nucleons and hyperons. The system is treated as of two components. The phase transition is analyzed by investigating the stability of the system and Gibbs conditions for phase equilibrium. A two-dimensional binodal surface resulted from the two-phase equilibrium, namely the phase boundary, is obtained. For each temperature ranging from T = 8 MeV to T = 12 MeV, a limit pressure on the binodal surface section is found, while a critical point is spotted for the temperature around T = 13 MeV. The Maxwell constructions are also illustrated to give a vivid description of the course of the phase transition. Moreover, the entropy per baryon and heat capacity per baryon as functions of temperature are examined. The entropy is continuous during the phase transition but the heat capacity is discontinuous, indicating that the phase transition is of second order. By these efforts, the L-G phase transition can be concluded to exist in the strange hadronic matter.

14 pages, 12 figures

References in corpus (6)

• Critical Temperature for the Nuclear Liquid-Gas Phase Transition
• Stability of strangelet at finite temperature
• Quark mass density- and temperature- dependent model for bulk strange quark matter
• Equation of state and phase transitions in asymmetric nuclear matter
• The effect of surface and Coulomb interaction on the liquid-gas phase transition of finite nuclei
• Liquid-gas phase transition in a two-components isospin lattice gas model for asymmetric nuclear matter

Cited by in corpus (5)

• Strangeness-driven phase transition in (proto)- neutron star matter
• Phase transition towards strange matter
• Improved quark mass density- dependent model with quark-sigma meson and quark-omega meson couplings
• Bulk and single-particle properties of hyperonic matter at finite temperature
• Liquid-gas Phase Transition in Strange Hadronic Matter with Weak Y-Y Interaction