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First measurement of symmetric cumulants of hexagonal flow harmonics in Pb-Pb collisions at √sNN=5.02 TeV

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Correlations between event-by-event fluctuations of anisotropic flow harmonics are measured in Pb-Pb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV, as recorded by the ALICE detector at the LHC. This study presents correlations up to the hexagonal flow harmonic 𝑣6, which was meas...

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Hauptverfasser: Acharya, Shreyasi (VerfasserIn) , Angelov, Venelin (VerfasserIn) , Berdnikova, Anastasia (VerfasserIn) , Bergmann, Luisa (VerfasserIn) , Bórquez Cárcamo, Andrés G. (VerfasserIn) , Danisch, Meike (VerfasserIn) , Feuillard, Victor (VerfasserIn) , Fokin, Ilya D. (VerfasserIn) , Glässel, Peter (VerfasserIn) , Grünwald, Nadine (VerfasserIn) , Menzel, Marius (VerfasserIn) , Nath, Abhishek (VerfasserIn) , Reygers, Klaus (VerfasserIn) , Schicker, Rainer (VerfasserIn) , Schlepper, Felix (VerfasserIn) , Seo, Jinjoo (VerfasserIn) , Skorodumovs, Georgijs (VerfasserIn) , Stachel, Johanna (VerfasserIn) , Stiefelmaier, Stephan (VerfasserIn) , Veen, Casper Arie van (VerfasserIn) , Windelband, Bernd (VerfasserIn) , Yüncü, Alperen (VerfasserIn) , Zanone, Federica (VerfasserIn) , Zhang, Biao (VerfasserIn)
Körperschaft: ALICE (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 18 August, 2025
In: Physical review
Year: 2025, Jahrgang: 112, Heft: 2, Pages: 1-14
ISSN:2469-9993
DOI:10.1103/4ltm-g1qg
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/4ltm-g1qg
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/4ltm-g1qg
Volltext
Verfasserangaben:S. Acharya et al. (ALICE Collaboration*)
Beschreibung
Zusammenfassung:Correlations between event-by-event fluctuations of anisotropic flow harmonics are measured in Pb-Pb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV, as recorded by the ALICE detector at the LHC. This study presents correlations up to the hexagonal flow harmonic 𝑣6, which was measured for the first time. The magnitudes of these higher-order correlations are found to vary as a function of collision centrality and harmonic order. These measurements are compared to viscous hydrodynamic model calculations with EKRT initial conditions and to the iEBE-VISHNU model with TR⁢ENTo initial conditions. The observed discrepancies between the data and the model calculations vary depending on the harmonic combinations. Due to the sensitivity of model parameters estimated with Bayesian analyses to these higher-order observables, the results presented in this work provide new and independent constraints on the initial conditions and transport properties in theoretical models used to describe the system created in heavy-ion collisions.
Beschreibung:Veröffentlicht: 18. August 2025
*ALICE Collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, A.G. Borquez Carcamo, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, N.A. Grunwald, M.W. Menzel, A. Nath, K. Reygers, R. Schicker, F. Schlepper, J.J. Seo, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, C.A. van Veen, B. Windelband, A. Yuncu, F. Zanone, B. Zhang [und 1052 weitere Personen]
Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol
Gesehen am 04.02.2026
Beschreibung:Online Resource
ISSN:2469-9993
DOI:10.1103/4ltm-g1qg

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