Liquid-gas phase transition of thermal nuclear matter and the in-medium balance between nuclear attraction and repulsion

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Shen Yang ◽  
Xiang Dong Sun ◽  
Jing Geng ◽  
Bao Yuan Sun ◽  
Wen Hui Long
Keyword(s):  
Phase Transition ◽  
Nuclear Matter ◽  
Gas Phase ◽  
Nuclear Attraction

scholarly journals Nuclear phase transition and thermodynamic instabilities in dense nuclear matter

2018 ◽  
Vol 182 ◽  
pp. 03007
Author(s):  
A. Lavagno
Keyword(s):  
Phase Transition ◽  
Nuclear Matter ◽  
Gas Phase ◽  
Degrees Of Freedom ◽  
Baryon Density ◽  
Hadronic Matter ◽  
Mechanical Instability ◽  
Dense Nuclear Matter ◽  
Nuclear Phase ◽  
Matter Phase

We study the presence of thermodynamic instabilities in a nuclear medium at finite temperature and density where nuclear phase transitions can take place. Such a phase transition is characterized by pure hadronic matter with both mechanical instability (fluctuations on the baryon density) that by chemical-diffusive instability (fluctuations on the electric charge concentration). Similarly to the liquid-gas phase transition, the nucleonic and the Δ-matter phase have a different isospin density in the mixed phase. In the liquid-gas phase transition, the process of producing a larger neutron excess in the gas phase is referred to as isospin fractionation. A similar effects can occur in the nucleon-Δ matter phase transition due essentially to a Δ- excess in the Δ-matter phase in asymmetric nuclear matter. In this context we also discuss the relevance of Δ-isobar and hyperon degrees of freedom in the bulk properties of the protoneutron stars at fixed entropy per baryon, in the presence and in the absence of trapped neutrinos.

Bimodality: a possible signature of the liquid-gas phase transition of nuclear matter

2005 ◽  
Vol 749 ◽  
pp. 93-97 ◽  
Author(s):  
M. Pichon ◽  
B. Tamain ◽  
R. Bougault ◽  
O. Lopez
Keyword(s):  
Phase Transition ◽  
Nuclear Matter ◽  
Gas Phase

EFFECTS OF THE ω MESON SELF COUPLING ON THE THERMAL PROPERTIES OF ASYMMETRIC NUCLEAR MATTER

2009 ◽  
Vol 24 (11n13) ◽  
pp. 1067-1070
Author(s):  
S. WIBOWO ◽  
A. SULAKSONO
Keyword(s):  
Phase Transition ◽  
Thermal Properties ◽  
Nuclear Matter ◽  
Gas Phase ◽  
Mean Field ◽  
Binodal Curve ◽  
Asymmetric Nuclear Matter ◽  
Relativistic Mean Field ◽  
Chemical Instabilities ◽  
Rmf Model

Effects of the ω meson self coupling (OMSC) on the thermal properties of asymmetric nuclear matter (ANM) are studied within the framework of relativistic mean field (RMF) model that includes contributions of all possible mixed interactions among meson fields involved up to quartic order. In particular, we study the mechanical and chemical instabilities (spinodal), as well as the liquid-gas phase transition (binodal) at finite temperature. It is found that the onset of spinodal instabilities and the binodal curve are only marginally affected by variation of the OMSC parameter, whereas the binodal curve shows a strong correlation to the symmetry energy. Comparison with other ERMF parameter sets is also performed.

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