SMuK 2023 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 37: Heavy-Ion Collisions and QCD Phases VII

HK 37.3: Vortrag

Mittwoch, 22. März 2023, 16:15–16:30, SCH/A216

New publications on higher-order flow observables in ALICE — •Ante Bilandzic, Farid Taghavi, Marcel Lesch, and Anton Riedel for the ALICE Germany collaboration — Technical University of Munich

In this contribution, the results from the two new publications on higher-order flow observables in ALICE are presented.

The newly developed Gaussian Estimator for correlations between symmetry planes, which characterize the direction of the anisotropic emission of produced particles, is measured in Pb-Pb collisions with ALICE. This allows for the first time the study of these quantities without the influence of correlations between different flow amplitudes, and therefore the extraction of unique and independent information about initial conditions and properties of Quark-Gluon Plasma from symmetry plane correlations.

In the second publication, the correlations between different moments of two flow amplitudes are measured for the first time with the recently developed asymmetric cumulants, which generalize the previous studies using symmetric cumulants of flow amplitudes.

For both sets of observables, comparison to state-of-the-art hydrodynamic model calculations is presented.

This project has received funding from the European Research Council (ERC) under the European Unions Horizon182020 research and innovation programme (grant agreement No 759257). Fundedf by BMBF Verbundforschung (05P21WOCA1 ALICE).