Quark Matter 2025

Session

Parallel session 27

9 Apr 2025, 08:40

Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany

Conveners

Parallel session 27: Heavy flavor & quarkonia III

• Hendrik van Hees

731. Unscreened potential and quarkonium width in QGP

Rasmus Larsen

09/04/2025, 08:40

Heavy flavor & quarkonia

Oral

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...

621. Determination of space diffusion coefficient by heavy flavour $R_{AA}$ and $v_n$ in an event-by-event approach

Maria Lucia Sambataro (Università degli Studi di Catania)

09/04/2025, 09:00

Heavy flavor & quarkonia

Oral

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...

619. Efficiently simulating quarkonium's evolution beyond the dipole approximation

Jorge Manuel Martínez Vera (Università di Torino and Universitat de Barcelona)

09/04/2025, 09:20

Heavy flavor & quarkonia

Oral

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...

733. Open charm production from small to large systems at LHCb

John Matthew Durham (Los Alamos National Laboratory)

09/04/2025, 09:40

Heavy flavor & quarkonia

Oral

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...

724. Charmonium production measurements from small to large systems at LHCb

Camilla De Angelis (Universita e INFN, Cagliari (IT))

09/04/2025, 10:00

Heavy flavor & quarkonia

Oral

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...

536. Quarkonium production in heavy-ion collisions with ALICE

Ingrid Mckibben Lofnes (University of Bergen (NO))

09/04/2025, 10:20

Heavy flavor & quarkonia

Oral

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...