Variational Calculation for the Equation of State of Hot Asymmetric Nuclear Matter

Physics – Nuclear Physics

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Nuclear Matter, Supernovae, Cluster Approximation, Nuclear Spin, Equations Of State Of Nuclear Matter, Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, Cluster Models, Spin, Parity, And Isobaric Spin

Scientific paper

We calculate the equation of state (EOS) of asymmetric nuclear matter at finite temperatures with the cluster variational method based on the realistic nuclear Hamiltonian composed of the AV18 and UIX nuclear potentials. The free energy is calculated with an extension of the variational method proposed by Schmidt and Pandharipande. The obtained thermodynamic quantities such as entropy, internal energy, pressure and chemical potential derived from the free energy are reasonable. It is also found that the present variational calculation is self-consistent. These thermodynamic quantities are essential ingredients in our project for constructing a new nuclear EOS applicable to supernova simulations.

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