Speaker
Prof.
Byungsik Hong
(Korea University)
Description
Quarkonium has been regarded as one of the golden probes for the deconfined phase
transition to the quark-gluon plasma (QGP) since late 80's when the relativistic
heavy-ion experiments started at AGS and SPS. The heavy quarkonia can be generated
in gluon-gluon scatterings at early stage of the collision as the large momentum
transfer is required. Later the binding potential between a quark and antiquark in
quarkonium is screened by surrounding light quarks and antiquarks. Thus, the
various quarkonium states are expected to be melt at different temperatures
depending on their binding energies, which allows us to characterize the QCD phase
transition. The suppression of the J/psi and Upsilon yields in Pb + Pb collisions
was observed at the Large Hadron Collider (LHC). In this presentation, we review
the quarkonium data at LHC, and discuss possible implications related to the
propagation of quarkonia in the deconfined hot, dense matter.
Primary author
Prof.
Byungsik Hong
(Korea University)
