Conveners
Parallel session 13: Heavy flavor & quarkonia II
- Pol-Bernard GOSSIAUX
A heavy quark-antiquark ($Q\bar Q$) pair can be produced in several pQCD processes, which impose different correlations between the $Q$ and $\bar Q$. Employing the recently advanced EPOS4HQ event generator, which contains these processes, we show that they explain the measured $D$$\bar D$ and $DD$ correlations and how they influence the $p_T$ distributions of open heavy flavor mesons in...
Heavy quarks serve as a clean probe of the quark-gluon plasma (QGP) produced in high-energy nuclear collisions. They are primarily generated from early-stage hard scatterings and retain information about the entire evolution of the QGP fireball. We have developed a state-of-the-art model to provide a comprehensive description of the heavy quark evolution in a realistic QGP medium from the...
In relativistic heavy-ion collisions, top quarks are expected to be attractive candidates for probing the quark-gluon plasma as well as to bring unique information about the time evolution of strongly interacting matter. We report the first study of top-quark pair production in lead-lead collisions at the centre-of-mass energy of 5.02 TeV with the ATLAS experiment at the LHC. The dataset was...
Quarkonium production in high-energy hadronic collisions is sensitive to both perturbative and non-perturbative aspects of quantum chromodynamics (QCD) calculations. Charmonium cross section can be split into prompt and non-prompt components, the first corresponding to directly produced charm-anticharm pairs, the second originating from the decay of beauty hadrons. Both components are...
Charm-baryon production measurements in proton-proton (pp) collisions at the LHC are fundamental to investigate the charm-quark hadronization, and to test perturbative QCD-based calculations. Recent measurements in pp collisions show baryon-to-meson ratios significantly higher than those in $\mathrm{e^+e^-}$ collisions, challenging the validity of theoretical calculations based on the...
