Nuclear Incompressibility at Finite Temperature and Entropy

Abstract

Features of the nuclear isothermal incompressibility $\kappa$ and adiabatic incompressibility ${\kappa }_Q$ are investigated. The calculations are done at zero and finite temperatures and non zero entropy and for several equations of state. It is shown that ${\kappa }_Q$ decreases with increasing entropy while the isothermal $\kappa$ increases with increasing $T$. A duality is found between the adiabatic ${\kappa }_Q$ and the T=0 isothermal $\kappa$. Our isothermal results are compared with a recent lattice Monte Carlo calculation done at finite $T$. The necessity of including correlations is shown if $\kappa$ is to have a peak with increasing $T$ as seen in the Monte Carlo calculations. A peak in $\kappa$ is linked to attractive scattering correlations in two nucleons channel in the virial expansion in our approach which are Pauli blocked at low $T$.

5 pages

References in corpus (5)

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• A microscopic estimate of the nuclear matter compressibility and symmetry energy in relativistic mean-field models
• Unmasking the nuclear matter equation of state
• Development of particle multiplicity distributions using a general form of the grand canonical partition function and applications to L3 and H1 Data
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Cited by in corpus (8)

• Thermal effects on nuclear symmetry energy with a momentum-dependent effective interaction
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• Warm dense matter and cooling of supernovae remnants
• Nuclear Incompressibility in Asymmetric Systems at Finite Temperature and Entropy
• Isothermal compressibility of hadronic matter formed in relativistic nuclear collisions
• Anisotropy of magnetized quark matter
• Nuclear equation of state and incompressibility in a model with correlations from giant monopole vibrations
• A study of Feshbach resonances and the unitary limit in a model of strongly correlated nucleons