Charm dynamics in heavy-ion collisions

Thursday 30 Jul 2020, 15:00 → 16:00 Europe/Zurich

CERN

Heavy flavor observables provide valuable information on the properties of the 
hot and dense Quark-Gluon Plasma (QGP) created in ultra-relativistic nucleus-nucleus collisions. 
In this talk we review the heavy flavour dynamics in relativistic heavy-ion 
collisions within the Parton-Hadron-String Dynamics (PHSD) transport approach.
The charm and bottom quarks are produced through initial binary nucleon-nucleon 
collisions taking into account the (anti-)shadowing effects.
During the quark-gluon plasma (QGP) phase, heavy quarks interact with off-shell 
massive partons (quarks and gluons) and are hadronized into D and B mesons through
coalescence or fragmentation close to the critical energy density, and then interact
with hadrons in the final hadronic stage with scattering cross sections calculated
in an effective Lagrangian approach with heavy-quark spin symmetry. 
We present the PHSD results on different heavy flavor observables (such as $R_{AA}$, $v_2$,
contribution to the dilepton spectra, correlations etc.) from RHIC BES to LHC 
energies. Also we address the properties of charm quarks in thermal equilibrium 
by transport coefficients which can be compared to lattice QCD data.

15:00 → 16:00 Charm dynamics in heavy-ion collisions

15:00-15:30 Elena Bratkovskaya about the topic

15:30-15:00 Common discussion

Speaker: Elena Bratkovskaya (GSI, Darmstadt)

NA61-30July2020.pdf