Systematic study of flow vector fluctuations in √sNN=5.02 TeV Pb-Pb collisions
Measurements of the 𝑝T-dependent flow vector fluctuations in Pb-Pb collisions at √𝑠NN=5.02TeV using azimuthal correlations with the ALICE experiment at the Large Hadron Collider are presented. A four-particle correlation approach [ALICE Collaboration, Phys. Rev. C 107, L051901 (2023)] is used to qua...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
June 2024
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| In: |
Physical review
Year: 2024, Volume: 109, Issue: 6, Pages: 1-19 |
| ISSN: | 2469-9993 |
| DOI: | 10.1103/PhysRevC.109.065202 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevC.109.065202 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevC.109.065202 
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| Author Notes: | S. Acharya et al. (ALICE Collaboration*) |
MARC
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| 245 | 1 | 0 | |a Systematic study of flow vector fluctuations in √sNN=5.02 TeV Pb-Pb collisions |c S. Acharya et al. (ALICE Collaboration*) |
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| 246 | 3 | 3 | |a Systematic study of flow vector fluctuations in square root sNN = 5.02 TeV Pb-Pb collisions |
| 264 | 1 | |c June 2024 | |
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| 500 | |a Veröffentlicht: 13. Juni 2024 | ||
| 500 | |a Gesehen am 13.11.2024 | ||
| 500 | |a *ALICE Collaboration: S. Acharya, V. Anguelov, A. Berdnikova, L. Bergmann, J. Crkovská, M.C. Danisch, V.J.G. Feuillard, I. Fokin, P. Glässel, N.A. Grunwald, A. Nath, Y. Pachmayer, K. Reygers, R. Schicker, F. Schlepper, J.J. Seo, G. Skorodumovs, J. Stachel, S.F. Stiefelmaier, C.A. van Veen, M.A. Völkl, B. Windelband, A. Yuncu, I. Zanone [und 1043 weitere Personen] | ||
| 500 | |a Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, NN ist dabei tiefgestellt | ||
| 520 | |a Measurements of the T-dependent flow vector fluctuations in Pb-Pb collisions at √NN=5.02TeV using azimuthal correlations with the ALICE experiment at the Large Hadron Collider are presented. A four-particle correlation approach [ALICE Collaboration, Phys. Rev. C 107, L051901 (2023)] is used to quantify the effects of flow angle and magnitude fluctuations separately. This paper extends previous studies to additional centrality intervals and provides measurements of the T-dependent flow vector fluctuations at √NN=5.02TeV with two-particle correlations. Significant T-dependent fluctuations of the ⃗2 flow vector in Pb-Pb collisions are found across different centrality ranges, with the largest fluctuations of up to ∼15% being present in the 5% most central collisions. In parallel, no evidence of significant T-dependent fluctuations of ⃗3 or ⃗4 is found. Additionally, evidence of flow angle and magnitude fluctuations is observed with more than 5 significance in central collisions. These observations in Pb-Pb collisions indicate where the classical picture of hydrodynamic modeling with a common symmetry plane breaks down. This has implications for hard probes at high T, which might be biased by T-dependent flow angle fluctuations of at least 23% in central collisions. Given the presented results, existing theoretical models should be reexamined to improve our understanding of initial conditions, quark-gluon plasma properties, and the dynamic evolution of the created system. | ||
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