Quark Matter 2025

Session

Parallel session 32

9 Apr 2025, 11:10

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

Conveners

Parallel session 32: Correlations & fluctuations III

• Horst Stoecker (GSI)

950. Recent femtoscopy and polarization studies with the CMS experiment

Isabela Maietto Silverio (UNESP - Universidade Estadual Paulista (BR))

09/04/2025, 11:10

Correlations & fluctuations

Oral

This presentation discusses recent results on femtoscopic correlations involving $D^0$ ($\bar{D0}$) mesons and hyperon polarization in pPb collisions at $\sqrt{s_{NN}}=8.16$ TeV. The femtoscopic measurements investigate the strong interaction for pair combinations of particles, allowing to extract the scattering observables accessible through their correlation functions. The results may...

869. Residual 3rd-body Coulomb Effect on Identical Charged Pion Correlations in Au+Au Collisions at STAR

Vinh Luong (Joint Institute for Nuclear Research)

09/04/2025, 11:30

Correlations & fluctuations

Oral

Measurements of identical pion femtoscopy offer insights into collision dynamics, such as collective expansion, geometry of the collision zone at freeze-out, etc. In addition to the quantum interference among the pion pairs, Coulomb interactions between the pair and the net positive charge in the emitting source affect the final measurements as well. Furthermore, due to the imbalance of...

764. Measurements of Light Nuclei ($d$, $t$, $^{3}He$) and $\Lambda$ correlation in Au+Au collisions at $\sqrt{s_{{NN}}}=$ 3 GeV from STAR

Xialei Jiang (Central China Normal University)

09/04/2025, 11:50

Correlations & fluctuations

Oral

Heavy-ion collisions offer a new way to understand hyperon-nucleon ($Y$-$N$) interactions. The two-particle correlation in pair relative momentum, which reveals valuable information about the space-time evolution of the particle-emitting source and final state interactions involving hyperons, is the primary observable of interest. The measurements of correlations between light nuclei ($d$,...

903. Tilted emitting source in the heavy-ion collisions

Michael Lisa, Yevheniia Khyzhniak

09/04/2025, 12:10

Correlations & fluctuations

Oral

The three-dimensional structure of the initial state in heavy-ion collisions have become important topic of interest in the community, since it provides insights into the origins of anisotropic flow, the breaking of boost invariance, longitudinal de-correlation, and particle correlations observed after kinetic freeze-out. One of the important properties of the 3D initial state is the tilt of...

887. The Fluctuating Boltzmann Equation and Short-Range Charge Correlations in Relativistic Heavy-Ion Collisions

Li Yan (Fudan University)

09/04/2025, 12:30

Correlations & fluctuations

Oral

Short-range correlations among hadrons in relativistic heavy-ion experiments are typically regarded as non-hydrodynamic and subtracted from the data. However, the fluid nature of the quark-gluon plasma (QGP) gives rise to short-range correlations stemming from hydrodynamic fluctuations. These correlations, driven by fluctuation-dissipation relations near local equilibrium, provide key insights...