High p_T Hadron Correlation and No Correlation

Abstract

An overview of the correlation among high-p_T hadrons produced in heavy-ion collisions is presented. Emphasis is placed on the physical processes that can quantitatively account for the data on correlations in p_T, \eta and \phi on the near and far sides. Predictions are made on processes that have no observable correlations for hadrons produced at intermediate and higher p_T at RHIC and LHC.

Comments: 8 pages including 14 figures. Talk given at Hard Probes 2006