Di-jet correlation in Au+Au and Cu+Cu Collisions from PHENIX

Abstract

PHENIX has measured the two-particle azimuth correlation in Au+Au at √s=200 GeV. Jet shape and yield at the away side are found to be strongly modified at intermediate and low p T, and the modifications vary dramatically with p T and centrality. At high p T, away side jet peak reappears but the yield is suppressed. Similar jet strength is found for Au+Au and Cu+Cu collisions with similar number of participant nucleons.