  Inclusive transverse momentum distributions of charged hadrons within
0.2<pT<6.0 GeV/c have been measured over a broad range of centrality for Au+Au
collisions at sqrt(sNN)=130 GeV. Hadron yields are suppressed at high pT in
central collisions relative to peripheral collisions and to a nucleon-nucleon
reference scaled for collision geometry. Peripheral collisions are not
suppressed relative to the nucleon-nucleon reference. The suppression varies
continuously at intermediate centralities. The results indicate significant
nuclear medium effects on high pT hadron production in heavy ion collisions at
high energy.
