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

Journal Article · Thu Jul 15 00:00:00 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, Vol. 82, Issue 1; Other Information: DOI: 10.1103/PhysRevC.82.014906; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

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