Event anisotropy $v_{2}$ at STAR

Details Event anisotropy $v_{2}$ at STAR Event anisotropy $v_{2}$ at STAR

2009-07-14

arxiv.org/abs/0907.2265v2

Nucl.Phys.A830:187c-190c,2009

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 3 figures - To appear in the conference proceedings for Quark Matter 2009, March 30 - April 4, Knoxville, Tennessee

Scientific paper

10.1016/j.nuclphysa.2009.10.093

Collective flow reflects the dynamical evolution in high-energy heavy ion collisions. In particular, the elliptic flow reflects early collision dynamics.We present a systematic analysis of elliptic flow ($v_{2}$) for identified particles measured in Au + Au and Cu + Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV. Number of quark scaling is tested in the intermediate $p_{T}$ region and in the smaller system (Cu + Cu). The Cu + Cu collisions results are compared with those from ideal hydrodynamic model calculations.

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