Azimuthal Anisotropy of Charged and Identified High $p_T$ Hadrons in Au+Au Collisions at RHIC

Abstract

We report new results on $v_2(p_T)$ for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV for charged hadrons, pions, kaons, (anti)protons, $K^0_s$, and $\Lambda$. The analysis is extended to $p_T=12$ GeV/c for charged hadrons and $p_T=4$ GeV/c for identified particles. A comparison of the azimuthal anisotropy of charged hadrons measured at \sqrtsNN=130 and 200 GeV is presented. The $p_T$-dependence of baryon versus meson elliptic flow is discussed.