Dense-medium modifications to jet-induced Hadron pair distributions in Au+Au collisions at sNN=200GeV

Azimuthal correlations of jet-induced high-p(T) charged hadronpairs are studied at midrapidity in Au+Au collisions at root s(NN)=200 GeV. The distribution of jet-associated partner hadrons(1.0 < p(T)< 2.5 GeV/c) per trigger hadron(2.5 < p(T)< 4.0 GeV/c) is found to vary with collision centrality, in both shape and yield, indicating a significant effect of the nuclear collision medium on the jet fragmentation process.