Jet Structure in Heavy Ion Collisions

Understand

We review recent theoretical developments in the study of the structure of jets that are produced in ultra relativistic heavy ion collisions.

• The core of the review focusses on the dynamics of the parton cascade that is induced by the interactions of a fast parton crossing a quark-gluon plasma.
• We recall the basic mechanisms responsible for medium induced radiation, underline the rapid disappearance of coherence effects, and the ensuing probabilistic nature of the medium induced cascade.
• We discuss how large radiative corrections modify the classical picture of the gluon cascade, and how these can be absorbed in a renormalization of the jet quenching parameter $\hat q $.