Measurement of High $p_T$ Flow and Jet Correlation in Au+Au Measurement of High $p_T$ Flow and Jet Correlation in Au+Au Collisions at $\sqrt{S_{NN}}=200GeV$ from PHENIX

Single hadron yields at high transverse momentum $p_T$ are observed to be strongly suppressed in central Au+Au collisions. This suppression is thought to be the result of jet quenching, and the observed high $p_T$ hadrons are thought to be dominated by fragmentation of hard scattered partons emitted from the surface of the overlap region. Although extremely simplistic, this picture would lead to a small but finite $v_2$ and a relatively unmodified near-side jet shape for these high $p_T$ hadrons. A combined study of the $v_2$ and near-side jet correlations of leading hadrons can improve our understanding of the particle production mechanism and geometrical bias in this $p_T$ region. PHENIX experiment installed a new reaction-plane detector and collected 5.5 billion Au+Au events in RUN7. The significantly improved ability to determine the reaction-plane and large statistics allow a more detailed study of flow and jet correlation. Results on the elliptic flow and jet correlation for high $p_T$ hadrons are presented.