**Special Colloquium** Jet and photon probes of hot, dense nuclear matter at the Large Hadron Collider

Event Dates: 

Monday, February 22, 2016 - 4:00pm

CTQM Seminar Type: 

  • Related Seminar Series

Speaker Name(s): 

Dennis Perepelitsa

Speaker Affiliation(s): 

Brookhaven National Laboratory

Abstract, Event Details: 

When large nuclei are accelerated to relativistic energies and brought into collision at the CERN Large Hadron Collider (LHC), the enormous temperature and energy density in the nuclear system trigger a phase transition into an exotic form of matter. The resulting quark-gluon plasma (QGP) evolves in an expanding, flowing fireball, and investigating its remarkable properties allows us to study how the theory of the strong nuclear force (quantum chromodynamics, or QCD) manifests itself in a novel high-density, high-temperature regime. Since the first nucleus-nucleus collisions in late 2010, a rich experimental program with the large, state-of-the-art detectors at the LHC has flourished. In this talk, I will focus on two valuable experimental tools developed to explore the QGP: reconstructed jets which arise from cascades of strongly-interacting quarks and gluons passing through the plasma; and high-energy photons which escape the interaction zone without further interaction.