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

M. Oldenburg
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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.

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M. Oldenburg. 2005-10-07. Azimuthal Anisotropy of Identified Hadrons in 200 GeV Au+Au Collisions. https://arxiv.org/abs/nucl-ex/0510026

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