Monday, Dec 5, 2016, 2:00 PM, 385E
Dr. Kurt Jung, (UIC)
Jet Physics in Heavy Ion Collisions, from Small to Large Systems

Highly energetic particle jets are produced in nucleon-nucleon hard scattering events and provide semi-direct access to quark kinematics. In heavy-ion collisions, like the lead-lead collisions at the CERN LHC, these jets are used as probes of the strongly interacting plasma of quarks and gluons (QGP) that is produced. Recent measurements of jet production in heavy-ion collisions have observed significant "jet quenching", where the particle jet loses energy as it traverses the hot and dense medium. Further measurements of jets as a function of parton mass (or flavor) attempt to differentiate between different energy loss mechanisms due in part to differences between the color factors of quark and gluons. Finally, measurements as a function of collision type (i.e. proton-lead vs lead-lead) try to factorize the so-called "final-state" energy loss due to the QGP from "initial-state" energy loss effects due to the presence of a nucleus in the collision system. I will present an overview of recent jet physics results in heavy-ion collisions, as well as provide some prospective measurements that should further disentangle the picture of parton energy loss in a QGP.