Shear viscosity to entropy density ratio in the Boltzmann-Uehling-Uhlenbeck model

Journal Article · Mon Aug 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.024607· OSTI ID:21596671

Li, S X; Fang, D Q; Ma, Y G; Zhou, C L

The ratio of shear viscosity ({eta}) to entropy density (s) for an equilibrated system is investigated in intermediate-energy heavy-ion collisions below 100A MeV within the framework of the Boltzmann-Uehling-Uhlenbeck model. After the collision system almost reaches a local equilibration, the temperature, pressure and energy density are obtained from the phase-space information and {eta}/s is calculated using the Green-Kubo formulas. The results show that {eta}/s decreases with incident energy and tends toward a smaller value around 0.5, which is not so drastically different from the BNL Relativistic Heavy Ion Collider results in the present model.

• OSTI ID: 21596671
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 84; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BNL
BROOKHAVEN RHIC
COLLISIONS
DENSITY
ENERGY DENSITY
ENERGY RANGE
ENTROPY
HEAVY ION ACCELERATORS
HEAVY ION REACTIONS
KUBO FORMULA
MATHEMATICAL SPACE
MEV RANGE
MEV RANGE 10-100
NATIONAL ORGANIZATIONS
NUCLEAR REACTIONS
PHASE SPACE
PHYSICAL PROPERTIES
SPACE
STORAGE RINGS
THERMODYNAMIC PROPERTIES
US AEC
US DOE
US ERDA
US ORGANIZATIONS
VISCOSITY