Abstract
Using the STAR detector, azimuthal correlations for high-PT charged particles over a large relative pseudorapidity range with full azimuthal angle coverage were measured. Comparison of the opposite-sign and same-sign correlation strengths showed that hard scattering and fragmentation are major sources of charged hadrons with PT>4 GeV/c in central Au + Au collisions. The azimuthal correlations in Au + Au collisions were treated as the superposition of independently determined elliptic flow and individual hard parton scattering contributions, the latter measured in the STAR p+p data.