Spinodal Instabilities in Nuclear Matter in a Stochastic Relativistic Mean-Field Approach

Details Spinodal Instabilities in Nuclear Matter in a Stochastic Relativistic Mean-Field Approach Spinodal Instabilities in Nuclear Matter in a Stochastic Relativistic Mean-Field Approach

2009-07-10

arxiv.org/abs/0907.1771v1

Physics

Nuclear Physics

Nuclear Theory

18 pages, 7 figures

Scientific paper

Spinodal instabilities and early growth of baryon density fluctuations in symmetric nuclear matter are investigated in the basis of stochastic extension of relativistic mean-field approach in the semi-classical approximation. Calculations are compared with the results of non-relativistic calculations based on Skyrme-type effective interactions under similar conditions. A qualitative difference appears in the unstable response of the system: the system exhibits most unstable behavior at higher baryon densities around $\rho_{b}=0.4 ~\rho_{0}$ in the relativistic approach while most unstable behavior occurs at lower baryon densities around $\rho_{b}=0.2 ~\rho_{0}$ in the non-relativistic calculations

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