Scaling Properties of Azimuthal Anisotropy in Au+Au and Cu+Cu Collisions at sNN=200GeV

A. Adare et al. (PHENIX Collaboration)
Phys. Rev. Lett. 98, 162301 – Published 16 April 2007

Abstract

Differential measurements of elliptic flow (v2) for Au+Au and Cu+Cu collisions at sNN=200GeV are used to test and validate predictions from perfect fluid hydrodynamics for scaling of v2 with eccentricity, system size, and transverse kinetic energy (KET). For KETmTm up to 1GeV the scaling is compatible with hydrodynamic expansion of a thermalized fluid. For large values of KET mesons and baryons scale separately. Quark number scaling reveals a universal scaling of v2 for both mesons and baryons over the full KET range for Au+Au. For Au+Au and Cu+Cu the scaling is more pronounced in terms of KET, rather than transverse momentum.

  • Figure
  • Figure
  • Figure
  • Received 16 August 2006

DOI:https://doi.org/10.1103/PhysRevLett.98.162301

©2007 American Physical Society

Authors & Affiliations

Click to Expand

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 98, Iss. 16 — 20 April 2007

Reuse & Permissions
Access Options

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×