Generalised non-equilibrium equation of state for nuclear matter with momentum-dependent interactions

The non-equilibrium equation of state is found in the approximation of the functional on the local density, and its application to the description of the emission of protons and pions in heavy ion collisions is considered. The non-equilibrium equation of state is studied in the context of the hydrodynamic approach. The compression stage, the expansion stage, and the freeze-out stage of the hot spot formed during the collisions of heavy ions are considered. The energy spectra of protons and subthreshold pions produced in collisions of heavy ions are calculated with inclusion of the nuclear viscosity effects and compared with experimental data for various combinations of colliding nuclei with energies of several tens of MeV per nucleon.

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A High-Temperature, Thermal Non-equilibrium Equation of State for Ammonia

International Journal of Thermophysics ◽

10.1007/s10765-006-0065-y ◽

2006 ◽

Vol 27 (3) ◽

pp. 794-819 ◽

Cited By ~ 4

Author(s):

D. L. Allison ◽

P. G. Mikellides

Keyword(s):

High Temperature ◽

Equation Of State ◽

Equilibrium Equation ◽

Non Equilibrium

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A Non-Equilibrium Equation-of-State Compositional Simulator

10.2118/37980-ms ◽

1997 ◽

Cited By ~ 11

Author(s):

Long X. Nghiem ◽

Peter H. Sammon

Keyword(s):

Equation Of State ◽

Equilibrium Equation ◽

Compositional Simulator ◽

Non Equilibrium

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Emission of high energy particles in heavy ion collisions and a non-equilibrium equation of state

EPJ Web of Conferences ◽

10.1051/epjconf/201920403018 ◽

2019 ◽

Vol 204 ◽

pp. 03018

Author(s):

Alexander T. D’yachenko ◽

Ivan A. Mitropolsky

Keyword(s):

Equation Of State ◽

Cross Sections ◽

Equilibrium Equation ◽

Heavy Ion ◽

High Energy ◽

Intermediate Energies ◽

Ion Collisions ◽

Hydrodynamic Approach ◽

High Energy Particles ◽

Non Equilibrium

A hydrodynamic approach with a non-equilibrium equation of state is used to describe the collisions of heavy ions at medium and intermediate energies. In the development of this approach, with the inclusion of nuclear viscosity effects and the introduction of an amendment to the microcanonical distribution, the double differential cross sections of proton emission in collisions of different nuclei are calculated, which are in agreement with the available experimental data on the emission of high-energy particles, including the cumulative spectral region.

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EQUATION OF STATE OF ASYMMETRIC NUCLEAR MATTER WITH GOGNY AND COULOMB INTERACTIONS

Modern Physics Letters A ◽

10.1142/s0217732390001190 ◽

1990 ◽

Vol 05 (14) ◽

pp. 1071-1080 ◽

Cited By ~ 7

Author(s):

S. W. HUANG ◽

M. Z. FU ◽

S. S. WU ◽

S. D. YANG

Keyword(s):

Equation Of State ◽

Nuclear Matter ◽

Coulomb Interaction ◽

Chemical Potential ◽

Compression Modulus ◽

Nucleon Nucleon ◽

Effective Density ◽

Coulomb Interactions ◽

Asymmetric Nuclear Matter ◽

Nucleon Nucleon Interaction

The equation of state of the asymmetric nuclear matter is calculated with the Gogny D1 effective density-dependent nucleon-nucleon interaction and the Coulomb interaction in the framework of the finite-temperature HF method with the rearrangement term. The dependence of the thermodynamical properties such as the critical temperature of the liquid-gas phase transition, the chemical potential, the compression modulus and the entropy on the Coulomb interaction in nuclear matter is treated by using a shielded two-body Coulomb potential and this method has been found to be a reasonable and effective approach.

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