Shear viscosity of hot nuclear matter by the mean free path method

Abstract

The shear viscosity of hot nuclear matter is investigated by using the mean free path method within the framework of IQMD model. Finite size nuclear sources at different density and temperature are initialized based on the Fermi-Dirac distribution. The results show that shear viscosity to entropy density ratio decreases with the increase of temperature and tends toward a constant value for $\rho \sim {\rho }_0$, which is consistent with the previous studies on nuclear matter formed during heavy-ion collisions. At $\rho \sim \frac{1}{2}{\rho }_0$, a minimum of $\eta /s$ is seen at around $T=10$ MeV and a maximum of the multiplicity of intermediate mass fragment ($M_{\text{IMF}}$) is also observed at the same temperature which is an indication of the liquid-gas phase transition.

5 figs and 5 pages; accepted by Physical Review C

References in corpus (15)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• On the Strongly-Interacting Low-Viscosity Matter Created in Relativistic Nuclear Collisions
• Has the QCD Critical Point been Signaled by Observations at RHIC ?
• Nuclear multifragmentation and phase transition for hot nuclei
• Small Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching
• Critical Behavior in Light Nuclear Systems: Experimental Aspects
• Shear Viscosity to Entropy Density Ratio of QCD below the Deconfinement Temperature
• QCD Viscosity to Entropy Density Ratio in the Hadronic Phase
• Pygmy and Giant Dipole Resonances by Coulomb Excitation using a Quantum Molecular Dynamics model
• The shear viscosity to entropy density ratio in finite nuclei
• Shear Transport Coefficients from Gauge/Gravity Correspondence
• Nucleon-nucleon momentum correlation function as a probe of the density distribution of valence neutron in neutron-rich nucleus
• Fluctuations of fragment observables
• Bimodalities : a survey of experimental data and models
• Ratio of shear viscosity to entropy density in multifragmentation of Au + Au

Cited by in corpus (8)

• The nucleon thermal width due to pion-baryon loops and its contribution in Shear viscosity
• Determining the temperature in heavy-ion collisions with multiplicity distribution
• Shear viscosity of nucleonic matter
• Correlation between elliptic flow and shear viscosity in intermediate-energy heavy-ion collisions
• Iso-vector dipole resonance and shear viscosity in low energy heavy-ion collision
• Isospin splitting of nucleon effective mass and shear viscosity of nuclear matter
• Green-Kubo formula for Boltzmann and Fermi-Dirac statistics
• Temperature and density effects on the two-nucleon momentum correlation function from excited single nuclei