Speaker: Abhijit Majumder (Duke University) 

Title: Jet Modification: The Perturbative Probe of 
				Nonperturbative QCD Matter

Abstract: The modification of hard jets, due to their passage through dense 
matter, is at present the most rigorous tool in the study of extended 
non-perturbative QCD matter. Calculated using the techniques of perturbative 
QCD, they also represent universal probes where the effects of the medium on 
the jet are encoded via the expectation values of a series of operator products, 
which in turn may be measured in any media. This allows the computation of jet 
modification in deep-inelastic scattering on a large nucleus as well as jet 
propagation through a quark gluon plasma to be placed on the same footing. The 
leading experimental observables are the transverse broadening of jets, leading 
particle attenuation as well as intra-jet and and even inter-jet correlations. 
The current status of this field will be reviewed and new observables which may 
be used to gain a more comprehensive picture of the partonic substructure of 
extended strongly interacting matter are outlined.