{ "id": "nucl-th/9608025", "version": "v1", "published": "1996-08-13T19:43:47.000Z", "updated": "1996-08-13T19:43:47.000Z", "title": "Isospin Lattice-Gas Model and Liquid-Gas Phase Transition in Asymmetric Nuclear Matter", "authors": [ "S. Ray", "J. Shamanna", "T. T. S. Kuo" ], "comment": "13 pages LaTex, 6 figures available on request at kuo@nuclear.physics.sunysb.edu", "journal": "Phys.Lett. B392 (1997) 7-12", "doi": "10.1016/S0370-2693(96)01509-2", "categories": [ "nucl-th" ], "abstract": "An isospin lattice-gas model, which is a spin-1 Ising model, is employed to investigate the liquid-gas phase transition in asymmetric nuclear matter. We consider nuclear matter as a lattice where each lattice site can be either empty or occupied by a proton or a neutron, with a nearest-neighbor interaction among the nucleons. With the Bragg-Williams mean field approximation, we calculate various thermodynamic properties of nuclear matter for different densities and different proton-neutron asymmetry parameter $s$. Our model exhibits liquid-gas phase transition below a critical temperature $T_c$, and predicts a monotonic decreasing of $T_c$ as the magnitude of $s$ is increased. The dependence of the nuclear matter isotherms on the asymmetry parameter $s$ is discussed.", "revisions": [ { "version": "v1", "updated": "1996-08-13T19:43:47.000Z" } ], "analyses": { "subjects": [ "21.65.+f" ], "keywords": [ "liquid-gas phase transition", "asymmetric nuclear matter", "isospin lattice-gas model", "bragg-williams mean field approximation", "proton-neutron asymmetry parameter" ], "tags": [ "journal article" ], "publication": { "journal": "Physics Letters B", "year": 1997, "month": "Feb", "volume": 392, "pages": 7 }, "note": { "typesetting": "LaTeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "inspire": 421938, "adsabs": "1997PhLB..392....7R" } } }