arXiv:0805.2318·v2·Nuclear Theory
Liquid-gas phase transition in nuclear matter from realistic many-body approaches
A. Rios (1) · A. Polls (2) · A. Ramos (2) · H. Müther (3) ((1) NSCL and Department of Physics and Astronomy, Michigan State University, USA, (2) Dept. d'ECM and ICC, Universitat de Barcelona, Spain, (3) Institüt für Theoretische Physik, Universität Tübingen, Germany)
Abstract
The existence of a liquid-gas phase transition for hot nuclear systems at subsaturation densities is a well established prediction of finite temperature nuclear many-body theory. In this paper, we discuss for the first time the properties of such phase transition for homogeneous nuclear matter within the Self-Consistent Green's Functions approach. We find a substantial decrease of the critical temperature with respect to the Brueckner-Hartree-Fock approximation. Even within the same approximation, the use of two different realistic nucleon-nucleon interactions gives rise to large differences in the properties of the critical point.
Comments: REVTEX4 - 23 pages, 5 figures, 1 table; corrections added, final version