Jet modification and a comparative study of hadron v2 measurements in sqrt(s_NN) = 200 GeV Au+Au collisions at RHIC-PHENIX

Abstract

In this analysis we measure the azimuthal angle($\varphi$) dependence of hadrons with respect to the reaction plane (${\Psi }_{RP}$) in events that were triggered by a high-$p_T$ ${\pi }^0$ of 5-10 GeV. Fitting the distribution of hadrons with a function of the type $\xi (1+2v_2\cos (2(\varphi -{\Psi }_{RP})))$, we observe that there is no significant statistical difference between $v_2$ inclusive hadrons and those hadrons from hard scattering events. We also compare the near-side jet widths using PYTHIA simulations with $h^{\pm }$-$h^{\pm }$ correlations in Au+Au at $\sqrt{s_{NN}}=200$ GeV.

5 pages, 4 figures, Proceedings of Poster Session, 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2006), November 14-20, 2006, Shanghai, P.R.China