Equation of state and phase transitions in asymmetric nuclear matter

Abstract

The structure of the 3-dimension pressure-temperature-asymmetry surface of equilibrium of the asymmetric nuclear matter is studied within the thermal Thomas-Fermi approximation. Special attention is paid to the difference of the asymmetry parameter between the boiling sheet and that of the condensation sheet of the surface of equilibrium. We derive the condition of existence of the regime of retrograde condensation at the boiling of the asymmetric nuclear matter. We have performed calculations of the caloric curves in the case of isobaric heating. We have shown the presence of the plateau region in caloric curves at the isobaric heating of the asymmetric nuclear matter. The shape of the caloric curve depends on the pressure and is sensitive to the value of the asymmetry parameter. We point out that the experimental value of the plateau temperature T \approx 7 MeV corresponds to the pressure P = 0.01 MeV/fm^3 at the isobaric boiling.

6 pages, 6 figures, submitted to Phys. Rev. C

Cited by in corpus (15)

• Caloric curves and critical behavior in nuclei
• Isotopic Dependence of the Nuclear Caloric Curve
• Enhanced Production of Neutron-Rich Rare Isotopes in Peripheral Collisions at Fermi Energies
• Asymmetry Dependence of the Nuclear Caloric Curve
• Using Light Charged Particles to Probe the Asymmetry Dependence of the Nuclear Caloric Curve
• Non-congruent phase transitions in strongly interacting matter within the Quantum van der Waals model
• Effect of nuclear periphery on nucleon transfer in peripheral collisions
• Liquid-gas phase transition and Coulomb instability of asymmetric nuclear systems
• Effect of the Coulomb interaction on the liquid-gas phase transition of nuclear matter
• Liquid-gas phase transition in strange hadronic matter
• Liquid-gas Phase Transition in Strange Hadronic Matter with Weak Y-Y Interaction
• Liquid-gas phase transition in a two-components isospin lattice gas model for asymmetric nuclear matter
• Isoscalar and isovector giant resonances in 44Ca, 54Fe, 64,68Zn and 56,58,60,68Ni
• Statistical and dynamical aspects in the decay of hot neutron-rich nuclei
• Cavitation and bubble collapse in hot asymmetric nuclear matter