Ratio of shear viscosity to entropy density in multifragmentation of Au + Au

Abstract

The ratio of the shear viscosity ($\eta$) to entropy density ($s$) for the intermediate energy heavy-ion collisions has been calculated by using the Green-Kubo method in the framework of the quantum molecular dynamics model. The theoretical curve of $\eta /s$ as a function of the incident energy for the head-on Au+Au collisions displays that a minimum region of $\eta /s$ has been approached at higher incident energies, where the minimum $\eta /s$ value is about 7 times Kovtun-Son- Starinets (KSS) bound (1/4$\pi$). We argue that the onset of minimum $\eta /s$ region at higher incident energies corresponds to the nuclear liquid gas phase transition in nuclear multifragmentation.

arXiv comment6 pages, 8 figures

References in corpus (26)

• Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
• Shear viscosity of strongly coupled N=4 supersymmetric Yang-Mills plasma
• Modelling the many-body dynamics of heavy ion collisions: Present status and future perspective
• On the Strongly-Interacting Low-Viscosity Matter Created in Relativistic Nuclear Collisions
• Has the QCD Critical Point been Signaled by Observations at RHIC ?
• Shear-Viscosity to Entropy Density Ratio of a Relativistic Hadron Gas
• Nuclear multifragmentation and phase transition for hot nuclei
• The liquid to vapor phase transition in excited nuclei
• Small Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching
• Limiting temperatures and the Equation of State of Nuclear Matter
• Shear Viscosity in a Gluon Gas
• Application of Information Theory in Nuclear Liquid Gas Phase Transition
• Nuclear Isospin Diffusivity
• Critical Behavior in Light Nuclear Systems: Experimental Aspects
• Shear Viscosity Coefficient from Microscopic Models
• Shear Viscosity to Entropy Density Ratio of QCD below the Deconfinement Temperature
• QCD Viscosity to Entropy Density Ratio in the Hadronic Phase
• Unified Description of Nuclear Stopping in Central Heavy-ion Collision from 10$A$ MeV to 1.2$A$ GeV
• Shear viscosity to entropy density ratio of a relativistic Hagedorn resonance gas
• Probing the symmetry energy from the nuclear isoscaling
• Evidence of Critical Behavior in the Disassembly of Nuclei with A ~ 36
• The shear viscosity to entropy density ratio in finite nuclei
• Shear Transport Coefficients from Gauge/Gravity Correspondence
• Shear viscosity to entropy density ratio in the Boltzmann-Uehling-Uhlenbeck model
• Cluster Emission and Phase Transition Behavior in the Nuclear Disassembly
• Cluster emission and phase transition behaviours in nuclear disassembly

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