Azimuthal Anisotropy of Identified Hadrons in 200 GeV Au+Au Collisions

Abstract

The azimuthal anisotropy parameter v2 has been measured with high statistics for identified hadrons in sqrt(s_NN) = 200 GeV Au+Au collisions with the STAR experiment. At high transverse momentum (pT) a strong v2 for pi+ + pi- and p + pbar is observed. In the intermediate pT region, number-of-constituent-quark scaling was tested to high precision. A detailed comparison of v2 for the multi-strange hadrons phi, Xi + anti-Xi, and Omega + anti-Omega with other particle species substantiates the development of collectivity among partons in the early phase of the collisions at RHIC.

Talk given at Quark Matter 2005, 18th Internationl Conference on Nucleus-Nucleus Interactions, August 4-9, 2005, Budapest, Hungary; 4 pages, 3 figures

Cited by in corpus (4)

• Anisotropic flow at RHIC: How unique is the number-of-constituent-quark scaling?
• Identified Particle Spectra and Jet Interactions with the Medium
• Evidence from Identified Particles for Active Quark and Gluon Degrees of Freedom
• Scaling Characteristics of Azimuthal Anisotropy at RHIC