Constraining the viscous freeze-out distribution function with data obtained at the BNL Relativistic Heavy Ion Collider (RHIC)

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

DOI:https://doi.org/10.1103/PHYSREVC.82.014906· OSTI ID:21389216

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

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

We investigate the form of the viscous correction to the equilibrium distribution function in the context of a Cooper-Frye freeze-out prescription for viscous hydrodynamic simulations of relativistic heavy ion collisions. The standard quadratic ansatz used by all groups for the case of shear viscosity is found to be disfavored by experimental data for v{sub 4}/(v{sub 2}){sup 2} at the Relativistic Heavy Ion Collider and is unlikely to be correct for the hadron resonance gas present at freeze-out. Instead, data for v{sub 2}(p{sub t}) along with v{sub 4}/(v{sub 2}){sup 2} favor a momentum dependence between linear and quadratic.

• OSTI ID: 21389216
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BNL
BROOKHAVEN RHIC
CORRECTIONS
DISTRIBUTION FUNCTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EQUILIBRIUM
FREEZING OUT
FUNCTIONS
HADRONS
HEAVY ION ACCELERATORS
HEAVY ION REACTIONS
NATIONAL ORGANIZATIONS
NUCLEAR REACTIONS
RELATIVISTIC RANGE
RESONANCE
SEPARATION PROCESSES
SIMULATION
STORAGE RINGS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
VISCOSITY