2007/02/28 by Jun Xu, Lie-Wen Chen, Bao-An Li +2 · 2 citations
Earth and Planetary Sciences · Physics and Astronomy · #Condensed matter physics #High-Energy Particle Collisions Research #High-pressure geophysics and materials #Isoscalar #Isospin #Momentum (technical analysis) #Nuclear matter #Nuclear physics #Nucleon #Phase transition #Physics #Quantum, superfluid, helium dynamics #Symmetry (geometry) #astro-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1016/j.physletb.2007.05.035
published as Phys.Lett.B650:348-353,2007 · 6 pages, 4 figures, revised version, to appear in PLB
openalex publication_date 2007/05/25 · arxiv created 2007/05/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The liquid–gas phase transition in hot neutron-rich nuclear matter is investigated within a self-consistent thermal model using an isospin and momentum dependent interaction (MDI) constrained by the isospin diffusion data in heavy-ion collisions, a momentum-independent interaction (MID), and an isoscalar momentum-dependent interaction (eMDYI). The boundary of the phase-coexistence region is shown to be sensitive to the density dependence of the nuclear symmetry energy with a softer symmetry energy giving a higher critical pressure and a larger area of phase-coexistence region. Compared with the momentum-independent MID interaction, the isospin and momentum-dependent MDI interaction is found to increase the critical pressure and enlarge the area of phase-coexistence region. For the isoscalar momentum-dependent eMDYI interaction, a limiting pressure above which the liquid–gas phase transition cannot take place has been found and it is shown to be sensitive to the stiffness of the symmetry energy.