Jet Tomography of Quark Gluon Plasma

Abstract

Recent experimental measurements of high $p_T$ hadron spectra and jet correlation at RHIC are analyzed within a parton model which incoporates initial jet production and final propagation in heavy-ion collisions. The suppresion of single hadron spectra, back-to-back correlation, their centrality dependence and azimuthal anisotropy point to a dense matter with an initial parton density about 30 times of that in a cold heavy nucleus.

Comments: 7 pages in RevTex, 4 figures. Invited talk at Confinement 2003-International Symposium on ``Color Confinement and Hadrons in Quantum Chromodynamics", RIKEN, Japan, July 21-24, 2003 and XXIV Brazilian Meeting of Particle and Field Physics, Caxambu, Brazil, Oct. 1-3, 2003