Quark Matter 2025

Session

Parallel session 7

10 Apr 2025, 09:00

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

Conveners

Parallel session 7: Heavy flavor & quarkonia IV

• Vincenzo Greco

859. sPHENIX measurement of the $\Lambda_c$ / $D^0$ ratio in p+p collisions at RHIC

Joe Osborn (Brookhaven National Laboratory)

10/04/2025, 09:00

Heavy flavor & quarkonia

Oral

sPHENIX is a next-generation experiment at RHIC for jet and heavy-flavor physics which was fully commissioned during 2023 and 2024. Using its novel streaming-readout-capable, precision tracking system, sPHENIX collected 100 billion unbiased p+p collisions, and a further sample of minimum-bias Au-Au collisions, in Run-24. A key measurement of the sPHENIX heavy flavor physics program is the...

958. Charm quark and QGP interactions through the spectra and anisotropic flow of D0 over the widest pT interval using Event-Shape Engineering at CMS

Soumik Chandra (Purdue University (US))

10/04/2025, 09:20

Heavy flavor & quarkonia

Oral

The charm quark is formed almost exclusively during the initial stages of the collision, and a significant fraction of the charm quarks fragment into the $D^{0}$ meson, the lightest open-charm hadron. We can gain insights into the interactions between the charm quark and the quark-gluon plasma (QGP) medium by studying the production and the flow of $D^{0}$ meson in heavy-ion collisions. We...

961. Investigating Charm Quark Interactions and Hadronization in PbPb Collisions through $\Lambda_c^+$ and $D_s^\pm$ flow Measurements

Nihar Ranjan Saha (Indian Institute of Technology Madras (IN))

10/04/2025, 09:40

Heavy flavor & quarkonia

Oral

Charm quarks serve as a sensitive probe of the Quark Gluon Plasma providing direct insights into its formation, evolution, and properties. We present the first-ever measurement of the elliptic flow of charm baryons, specifically prompt $\Lambda_c^+$, in lead-lead (PbPb) collisions at a center-of-mass energy of 5.36 TeV, using the CMS experiment. We also present the elliptic and triangular flow...

747. Pre-equilibrium charm quark dynamics and their impact on D-Meson observables

Bjoern Schenke (Brookhaven National Lab)

10/04/2025, 10:00

Heavy flavor & quarkonia

Oral

Charm quarks offer valuable insights into the properties and evolution of the QCD medium as they are generated in the initial moments of energetic heavy-ion collisions at Relativistic Heavy-Ion collider (RHIC) and Large Hadron Collider (LHC). In particular, they can carry signals from the pre-equilibrium stage since the very high energy density of this stage can result in significant...

782. Testing the QCD formation time with reconstructed parton splittings

Jasmine Therese Brewer (University of Oxford (GB))

10/04/2025, 10:20

Heavy flavor & quarkonia

Oral

Heavy ion collisions provide a unique opportunity to access the space-time ordering of parton branching processes, since parton showers interact with a spatially-extended dense medium. However, the challenges of robustly isolating the formation time of a splitting phenomenologically has prevented formation time-dependent modification effects from being accessed experimentally. We address these...