Spinodal Instabilities in Asymmetric Nuclear Matter Based on Realistic $NN$ Interactions

Autor:	van Dalen, E. N. E., Müther, H.
Rok vydání:	2012
Předmět:	Nuclear Theory
Zdroj:	Phys. Rev. C87 02417, 2013
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevC.87.024317
Popis:	A density dependent relativistic mean-field model is determined to reproduce the components of the nucleon self-energy at low densities. This model is used to investigate spinodal instabilities in isospin asymmetric nuclear matter at finite temperatures. The inhomogeneous density distributions in the spinodal region are investigated through calculations in a cubic Wigner-Seitz cell. Compared to results obtained in phenomenological calculations the spinodal region is large, i.e. the spinodal region at zero temperature can reach densities above 0.12 fm$^{-3}$. The predicted spinodal region is concentrated around isospin symmetric nuclear matter and the critical temperature is considerably lower than in the previous microscopic based investigation within a non-relativistic Brueckner-Hartree-Fock approach. Comment: 11 pages, 7 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1208.2816 Zobrazit plný text záznamu View this record from Arxiv