CRITICAL NEUTRON-PROTON ASYMMETRY OF HOT NUCLEAR MATTER

1 May 1986

journal article
Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A

Vol. 1 (2) , 71-80
https://doi.org/10.1142/s0217732386000117

Abstract

We derive an equation of state for asymmetric nuclear matter at finite temperature, using the Skyrme effective nucleon-nucleon interaction and a mean field approach based on a real-time finite temperature Green’s function method with a normal pair cutoff approximation. With the temperature held constant, it is found that nuclear matter can exist only in the gaseous phase when its neutron excess coefficient a has surpassed a certain critical value α_c. We have calculated α_c for a number of different Skyrme effective interactions. Phase diagrams involving a are obtained, and a low-density equation for the phase boundary is derived.

Keywords

CRITICAL NEUTRON
NEUTRON PROTON
NUCLEAR MATTER
HOT NUCLEAR
PROTON ASYMMETRY

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