Conveners
Parallel session 27: Heavy flavor & quarkonia III
- Hendrik van Hees
Screening of the heavy quark anti-quark potential was suggested as the cause of quarkonium melting in quark gluon plasma (QGP). Perturbative QCD calculations within potential non-relativistic QCD (pNRQCD) on the other hand do not lead to a screened potential in general and the thermal correction to the potential also has an imaginary part. We determine the complex potential in QGP using...
The strong interaction in the non-perturbative regime typical of the system created in Heavy-Ion collision has been studied in the past years through an effective Quasi-Particle Model ($QPM$): we present an extension to a more realistic model, named $QPMp$, incorporating momentum-dependent parton masses as entailed by QCD asymptotic free dynamics. This model naturally improves the description...
The open quantum system framework allows one to compute quarkonium's evolution in a medium, keeping track of the needed quantum features. However, computing this evolution is a computationally demanding task. QTRAJ is an efficient code that allows one to simulate the behavior of quarkonium in a medium in the case in which the medium sees quarkonium as a small color dipole $rT\ll 1$. While this...
Open charm production is a sensitive probe of both hot and cold nuclear matter effects. Charm meson production provides strong constraints on nuclear parton distributions, while charm baryon and strange charm hadron production can be used to probe strangeness- and baryon-enhancing hot QCD effects, respectively. The LHCb detector is designed to study heavy flavor hadrons at the LHC, providing...
Modifications of quarkonia production in hadronic collisions provide an important experimental observable to probe the heavy quark interaction with the nuclear medium. The excited ψ(2S) state, with a relatively low binding energy, is especially sensitive to these effects. In thiscontribution, we will present a new LHCb result on ψ(2s)/J/ψ production in PbPb collisions, along with progress on...
Charmonium production has long been identified as one of the golden probes to study the quark–gluon plasma (QGP). In fact, the early production of heavy quarks ($c\bar{c}$ and $b\bar{b}$) make charmonia an ideal tool to investigate the evolution of the hot and dense medium produced in ultra-relativistic heavy-ion collisions. Moreover, at LHC energies the recombination of uncorrelated charm...
