v{sub 4} from ideal and viscous hydrodynamic simulations of nuclear collisions at the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC)

Journal Article · Sat May 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.054910· OSTI ID:21389050

Luzum, Matthew; Gombeaud, Clement; Ollitrault, Jean-Yves ^[1]

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1. Institut de Physique Theorique, CEA, IPhT, F-91191 Gif-sur-Yvette (France) and CNRS, URA 2306, F-91191 Gif-sur-Yvette (France)

We compute v{sub 4}/(v{sub 2}){sup 2} in ideal and viscous hydrodynamics. We investigate its sensitivity to details of the hydrodynamic model and compare the results to experimental data from the BNL Relativistic Heavy Ion Collider (RHIC). Whereas v{sub 2} has a significant sensitivity only to initial eccentricity and viscosity while being insensitive to freeze-out temperature, we find that v{sub 4}/(v{sub 2}){sup 2} is quite insensitive to initial eccentricity. On the other hand, it can still be sensitive to shear viscosity in addition to freeze-out temperature, although viscous effects do not universally increase v{sub 4}/(v{sub 2}){sup 2} as originally predicted. Consistent with data, we find no dependence on particle species. We also make a prediction for v{sub 4}/(v{sub 2}){sup 2} in heavy ion collisions at the CERN Large Hadron Collider (LHC).

• OSTI ID: 21389050
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 81; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BROOKHAVEN RHIC
CERN LHC
COLLISIONS
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CYCLIC ACCELERATORS
EVALUATION
FORECASTING
FREEZING OUT
HEAVY ION ACCELERATORS
HEAVY ION REACTIONS
HYDRODYNAMIC MODEL
MATHEMATICAL MODELS
NUCLEAR REACTIONS
PARTICLE MODELS
SENSITIVITY
SEPARATION PROCESSES
SIMULATION
STATISTICAL MODELS
STORAGE RINGS
SYNCHROTRONS
THERMODYNAMIC MODEL
VISCOSITY